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Botanical illustration of Rocky Mountain Penstemon (Penstemon strictus) — a deciduous perennial for USDA zones 4–8

Penstemon strictus

Rocky Mountain Penstemon

PerennialDeciduousNative
Mature size
1.5–2.5 ft tall
1–1.5 ft wide
Sun
Full Sun
Water use
Very Low
USDA zones
4–8
Soil
Lean, drained
Bloom
Blue-purple
Summer

Notable features

pollinatorhummingbirdnativeshowy bloom

Best companions for Rocky Mountain Penstemon

Six water-wise companions matched on water use, sun, USDA zone, and how they layer visually beside Rocky Mountain Penstemon.

Botanical illustration of Big Sagebrush (Artemisia tridentata) — a evergreen shrub for USDA zones 4–9

Big Sagebrush

Native

Artemisia tridentata

Shrub3–6 ft tallZones 4–9
Excellent match· 10.5

Checks nearly every box — a confident pairing.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
  • Silver foliage contrasts with Rocky Mountain Penstemon
  • Evergreen — holds structure through winter
Botanical illustration of Silver Buffaloberry (Shepherdia argentea) — a deciduous shrub for USDA zones 3–7

Silver Buffaloberry

Native

Shepherdia argentea

Shrub6–12 ft tallZones 3–7
Strong match· 9.5

A reliable, well-suited combination.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Silver foliage contrasts with Rocky Mountain Penstemon
  • Supports pollinators and wildlife
Botanical illustration of Creeping Mahonia (Mahonia repens) — a evergreen groundcover for USDA zones 3–8

Creeping Mahonia

Native

Mahonia repens

Groundcover1–1.5 ft tallZones 3–8
Strong match· 8.5

A reliable, well-suited combination.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Evergreen — holds structure through winter
  • Supports pollinators and wildlife
  • Fire-resistant — good for defensible space
Botanical illustration of New Mexico Privet (Forestiera neomexicana) — a deciduous tree for USDA zones 4–8

New Mexico Privet

Native

Forestiera neomexicana

Tree10–18 ft tallZones 4–8
Good match· 8

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Gambel Oak (Quercus gambelii) — a deciduous tree for USDA zones 4–8

Gambel Oak

Native

Quercus gambelii

Tree15–30 ft tallZones 4–8
Good match· 8

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Giant Sacaton (Sporobolus wrightii) — a deciduous grass for USDA zones 5–9

Giant Sacaton

Native

Sporobolus wrightii

Grass4–6 ft tallZones 5–9
Good match· 8

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
  • Fine grass texture contrasts with Rocky Mountain Penstemon's form
  • Native to the region, like Rocky Mountain Penstemon

More that work

102 more compatible plants that pair well with Rocky Mountain Penstemon, grouped by category. Pin any of them to your palette.

Shrub (39)
Botanical illustration of Oregon Grape Holly (Mahonia aquifolium) — a evergreen shrub for USDA zones 3–9

Oregon Grape Holly

Native

Mahonia aquifolium

Shrub5–6 ft tallZones 3–9
Strong match· 9.5

A reliable, well-suited combination.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Evergreen — holds structure through winter
  • Supports pollinators and wildlife
Botanical illustration of Winterfat (Krascheninnikovia lanata) — a evergreen shrub for USDA zones 3–8

Winterfat

Native

Krascheninnikovia lanata

Shrub1–3 ft tallZones 3–8
Strong match· 9.5

A reliable, well-suited combination.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
  • Silver foliage contrasts with Rocky Mountain Penstemon
  • Evergreen — holds structure through winter
  • Supports pollinators and wildlife
Botanical illustration of Curlleaf Mountain Mahogany (Cercocarpus ledifolius) — a evergreen shrub for USDA zones 4–9

Curlleaf Mountain Mahogany

Native

Cercocarpus ledifolius

Shrub10–15 ft tallZones 4–9
Strong match· 9

A reliable, well-suited combination.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Evergreen — holds structure through winter
  • Supports pollinators and wildlife
Botanical illustration of Fourwing Saltbush (Atriplex canescens) — a evergreen shrub for USDA zones 5–9

Fourwing Saltbush

Native

Atriplex canescens

Shrub3–6 ft tallZones 5–9
Strong match· 9

A reliable, well-suited combination.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Silver foliage contrasts with Rocky Mountain Penstemon
  • Evergreen — holds structure through winter
  • Supports pollinators and wildlife
Botanical illustration of Greenleaf Manzanita (Arctostaphylos patula) — a evergreen shrub for USDA zones 4–9

Greenleaf Manzanita

Native

Arctostaphylos patula

Shrub4–6 ft tallZones 4–9
Strong match· 9

A reliable, well-suited combination.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Evergreen — holds structure through winter
  • Supports pollinators and wildlife
Botanical illustration of Kinnikinnick (Arctostaphylos uvar-ursi) — a evergreen shrub for USDA zones 2–6

Kinnikinnick

Native

Arctostaphylos uvar-ursi

Shrub0.33–0.67 ft tallZones 2–6
Strong match· 8.5

A reliable, well-suited combination.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Evergreen — holds structure through winter
  • Supports pollinators and wildlife
  • Fire-resistant — good for defensible space
Botanical illustration of Rubber Rabbitbrush (Ericameria nauseosa) — a deciduous shrub for USDA zones 4–9

Rubber Rabbitbrush

Native

Ericameria nauseosa

Shrub3–5 ft tallZones 4–9
Strong match· 8.5

A reliable, well-suited combination.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
  • Silver foliage contrasts with Rocky Mountain Penstemon
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Antelope Bitterbrush (Purshia tridentata) — a deciduous shrub for USDA zones 4–9

Antelope Bitterbrush

Native

Purshia tridentata

Shrub5–8 ft tallZones 4–9
Good match· 8

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Gray Rabbitbrush (Chrysothamnus nauseosus) — a deciduous shrub for USDA zones 4–6

Gray Rabbitbrush

Native

Chrysothamnus nauseosus

Shrub2–6 ft tallZones 4–6
Good match· 8

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Mountain Mahogany (Cercocarpus montanus) — a deciduous shrub for USDA zones 4–8

Mountain Mahogany

Native

Cercocarpus montanus

Shrub5–10 ft tallZones 4–8
Good match· 8

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Threeleaf Sumac (Rhus trilobata) — a deciduous shrub for USDA zones 4–8

Threeleaf Sumac

Native

Rhus trilobata

Shrub3–6 ft tallZones 4–8
Good match· 8

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Wax Currant (Ribes cereum) — a deciduous shrub for USDA zones 4–8

Wax Currant

Native

Ribes cereum

Shrub3–5 ft tallZones 4–8
Good match· 8

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Golden Currant (Ribes aureum) — a deciduous shrub for USDA zones 4–8

Golden Currant

Native

Ribes aureum

Shrub4–6 ft tallZones 4–8
Good match· 7.5

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Fire-resistant — good for defensible space
Botanical illustration of Western Sand Cherry (Prunus besseyi) — a deciduous shrub for USDA zones 3–7

Western Sand Cherry

Native

Prunus besseyi

Shrub4–6 ft tallZones 3–7
Good match· 7.5

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Fire-resistant — good for defensible space
Botanical illustration of Apache Plume (Fallugia paradoxa) — a deciduous shrub for USDA zones 4–9

Apache Plume

Native

Fallugia paradoxa

Shrub3–5 ft tallZones 4–9
Good match· 7

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
  • Native to the region, like Rocky Mountain Penstemon
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of Banana Yucca (Yucca baccata) — a evergreen shrub for USDA zones 5–9

Banana Yucca

Native

Yucca baccata

Shrub2–3 ft tallZones 5–9
Good match· 7

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Evergreen — holds structure through winter
  • Native to the region, like Rocky Mountain Penstemon
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of Boulder Raspberry (Rubus deliciosus) — a deciduous shrub for USDA zones 4–8

Boulder Raspberry

Native

Rubus deliciosus

Shrub3–5 ft tallZones 4–8
Good match· 7

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Common Lilac (Syringa vulgaris) — a deciduous shrub for USDA zones 3–7

Common Lilac

Syringa vulgaris

Shrub8–12 ft tallZones 3–7
Good match· 7

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Fire-resistant — good for defensible space
Botanical illustration of Nannyberry (Viburnum lentago) — a deciduous shrub for USDA zones 2–8

Nannyberry

Viburnum lentago

Shrub15–18 ft tallZones 2–8
Good match· 7

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Fire-resistant — good for defensible space
Botanical illustration of Purpleleaf Sandcherry (Prunus x cistena) — a deciduous shrub for USDA zones 4–8

Purpleleaf Sandcherry

Prunus x cistena

Shrub4–6 ft tallZones 4–8
Good match· 7

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Fire-resistant — good for defensible space
Botanical illustration of Saskatoon Serviceberry (Amelanchier alnifolia) — a deciduous shrub for USDA zones 3–7

Saskatoon Serviceberry

Native

Amelanchier alnifolia

Shrub6–12 ft tallZones 3–7
Good match· 7

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Wayfaring Tree (Viburnum lantana) — a deciduous shrub for USDA zones 4–8

Wayfaring Tree

Viburnum lantana

Shrub10–15 ft tallZones 4–8
Good match· 7

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Fire-resistant — good for defensible space
Botanical illustration of Black Chokeberry (Aronia melanocarpa) — a deciduous shrub for USDA zones 3–9

Black Chokeberry

Aronia melanocarpa

Shrub3–6 ft tallZones 3–9
Good match· 6.5

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
Botanical illustration of Blue Mist Spirea (Caryopteris x clandonensis) — a deciduous shrub for USDA zones 5–10

Blue Mist Spirea

Caryopteris x clandonensis

Shrub3–5 ft tallZones 5–10
Good match· 6.5

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
Botanical illustration of Peking Cotoneaster (Cotoneaster acutifolius) — a deciduous shrub for USDA zones 3–7

Peking Cotoneaster

Cotoneaster acutifolius

Shrub6–10 ft tallZones 3–7
Good match· 6.5

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
Botanical illustration of Siberian Peashrub (Caragana arborescens) — a deciduous shrub for USDA zones 2–7

Siberian Peashrub

Caragana arborescens

Shrub10–15 ft tallZones 2–7
Good match· 6.5

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of Meyer Lilac (Syringa meyeri) — a deciduous shrub for USDA zones 3–8

Meyer Lilac

Syringa meyeri

Shrub4–8 ft tallZones 3–8
Worth considering· 6

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Fire-resistant — good for defensible space
Botanical illustration of Snowberry (Symphoricarpos albus) — a deciduous shrub for USDA zones 3–7

Snowberry

Native

Symphoricarpos albus

Shrub4–6 ft tallZones 3–7
Worth considering· 6

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Supports pollinators and wildlife
  • Fire-resistant — good for defensible space
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Alpine Currant (Ribes alpinum) — a deciduous shrub for USDA zones 2–7

Alpine Currant

Ribes alpinum

Shrub3–5 ft tallZones 2–7
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
Botanical illustration of Butterfly Bush (Buddleja davidii) — a deciduous shrub for USDA zones 5–9

Butterfly Bush

Buddleja davidii

Shrub5–8 ft tallZones 5–9
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
Botanical illustration of Fernbush (Chamaebatiaria millefolium) — a deciduous shrub for USDA zones 4–8

Fernbush

Native

Chamaebatiaria millefolium

Shrub4–6 ft tallZones 4–8
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Native to the region, like Rocky Mountain Penstemon
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of Forsythia (Forsythia cultivars) — a deciduous shrub for USDA zones 4–8

Forsythia

Forsythia cultivars

Shrub6–8 ft tallZones 4–8
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
Botanical illustration of Mountain Ninebark (Physocarpus monogynus) — a deciduous shrub for USDA zones 3–7

Mountain Ninebark

Native

Physocarpus monogynus

Shrub3–5 ft tallZones 3–7
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Supports pollinators and wildlife
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Smooth Sumac (Rhus glabra) — a deciduous shrub for USDA zones 3–8

Smooth Sumac

Native

Rhus glabra

Shrub8–15 ft tallZones 3–8
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Supports pollinators and wildlife
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Soapweed Yucca (Yucca glauca) — a evergreen shrub for USDA zones 4–8

Soapweed Yucca

Native

Yucca glauca

Shrub2–4 ft tallZones 4–8
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Evergreen — holds structure through winter
  • Native to the region, like Rocky Mountain Penstemon
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of Woods' Rose (Rosa woodsii) — a deciduous shrub for USDA zones 3–8

Woods' Rose

Native

Rosa woodsii

Shrub3–6 ft tallZones 3–8
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Supports pollinators and wildlife
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Mugo Pine (Pinus mugo) — a evergreen shrub for USDA zones 2–7

Mugo Pine

Pinus mugo

Shrub2–20 ft tallZones 2–7
Worth considering· 5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Evergreen — holds structure through winter
Botanical illustration of Shrubby Cinquefoil (Dasiphora fruticosa) — a deciduous shrub for USDA zones 2–7

Shrubby Cinquefoil

Native

Dasiphora fruticosa

Shrub2–4 ft tallZones 2–7
Worth considering· 5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Gro-Low Sumac (Rhus aromatica) — a deciduous shrub for USDA zones 4–9

Gro-Low Sumac

Rhus aromatica

Shrub1–3 ft tallZones 4–9
Worth considering· 4.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
Tree (22)
Botanical illustration of Bur Oak (Quercus macrocarpa) — a deciduous tree for USDA zones 3–8

Bur Oak

Native

Quercus macrocarpa

Tree50–70 ft tallZones 3–8
Good match· 7.5

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Fire-resistant — good for defensible space
Botanical illustration of Chokecherry (Prunus virginiana) — a deciduous tree for USDA zones 2–6

Chokecherry

Native

Prunus virginiana

Tree20–30 ft tallZones 2–6
Good match· 7.5

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Fire-resistant — good for defensible space
Botanical illustration of Pinyon Pine (Pinus edulis) — a evergreen tree for USDA zones 5–8

Pinyon Pine

Native

Pinus edulis

Tree10–20 ft tallZones 5–8
Good match· 7.5

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Evergreen — holds structure through winter
  • Supports pollinators and wildlife
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Rocky Mountain Juniper (Juniperus scopulorum) — a evergreen tree for USDA zones 3–7

Rocky Mountain Juniper

Native

Juniperus scopulorum

Tree15–30 ft tallZones 3–7
Good match· 7.5

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Evergreen — holds structure through winter
  • Supports pollinators and wildlife
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Common Hackberry (Celtis occidentalis) — a deciduous tree for USDA zones 3–8

Common Hackberry

Native

Celtis occidentalis

Tree40–60 ft tallZones 3–8
Good match· 7

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Flowering Crabapple (Malus hybrids) — a deciduous tree for USDA zones 4–8

Flowering Crabapple

Malus hybrids

Tree15–20 ft tallZones 4–8
Good match· 7

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Fire-resistant — good for defensible space
Botanical illustration of Ponderosa Pine (Pinus ponderosa) — a evergreen tree for USDA zones 3–6

Ponderosa Pine

Native

Pinus ponderosa

Tree50–60 ft tallZones 3–6
Good match· 7

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Evergreen — holds structure through winter
  • Supports pollinators and wildlife
  • Fire-resistant — good for defensible space
Botanical illustration of Western Larch (Larix occidentalis) — a evergreen tree for USDA zones 4–7

Western Larch

Native

Larix occidentalis

Tree100–180 ft tallZones 4–7
Good match· 7

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Evergreen — holds structure through winter
  • Fire-resistant — good for defensible space
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Quaking Aspen (Populus tremuloides) — a deciduous tree for USDA zones 1–8

Quaking Aspen

Native

Populus tremuloides

Tree30–40 ft tallZones 1–8
Good match· 6.5

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Fire-resistant — good for defensible space
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Rocky Mountain Maple (Acer glabrum) — a deciduous tree for USDA zones 4–8

Rocky Mountain Maple

Native

Acer glabrum

Tree20–30 ft tallZones 4–8
Good match· 6.5

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Fire-resistant — good for defensible space
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Thornless Honeylocust (Gleditsia triacanthos inermis) — a deciduous tree for USDA zones 3–9

Thornless Honeylocust

Native

Gleditsia triacanthos inermis

Tree35–40 ft tallZones 3–9
Good match· 6.5

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Fire-resistant — good for defensible space
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Amur Maple (Acer ginnala) — a deciduous tree for USDA zones 2–8

Amur Maple

Acer ginnala

Tree15–20 ft tallZones 2–8
Worth considering· 6

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Fire-resistant — good for defensible space
Botanical illustration of Bigtooth Maple (Acer grandidentatum) — a deciduous tree for USDA zones 4–8

Bigtooth Maple

Native

Acer grandidentatum

Tree20–30 ft tallZones 4–8
Worth considering· 6

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Green Ash (Fraxinus pennsylvanica) — a deciduous tree for USDA zones 3–9

Green Ash

Fraxinus pennsylvanica

Tree40–60 ft tallZones 3–9
Worth considering· 6

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Fire-resistant — good for defensible space
Botanical illustration of Kentucky Coffeetree (Gymnocladus dioicus) — a deciduous tree for USDA zones 3–8

Kentucky Coffeetree

Native

Gymnocladus dioicus

Tree50–70 ft tallZones 3–8
Worth considering· 6

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Pin Oak (Quercus palustris) — a deciduous tree for USDA zones 4–8

Pin Oak

Quercus palustris

Tree60–70 ft tallZones 4–8
Worth considering· 6

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Fire-resistant — good for defensible space
Botanical illustration of Red Oak (Quercus rubra) — a deciduous tree for USDA zones 3–7

Red Oak

Quercus rubra

Tree60–70 ft tallZones 3–7
Worth considering· 6

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Fire-resistant — good for defensible space
Botanical illustration of Bristlecone Pine (Pinus aristata) — a evergreen tree for USDA zones 4–7

Bristlecone Pine

Native

Pinus aristata

Tree10–30 ft tallZones 4–7
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Evergreen — holds structure through winter
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Weeping Mulberry (Morus alba 'Chaparral') — a deciduous tree for USDA zones 4–8

Weeping Mulberry

Morus alba 'Chaparral'

Tree8 ft tallZones 4–8
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
Botanical illustration of Austrian Pine (Pinus nigra) — a evergreen tree for USDA zones 4–7

Austrian Pine

Pinus nigra

Tree40–50 ft tallZones 4–7
Worth considering· 5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Evergreen — holds structure through winter
Botanical illustration of Limber Pine (Pinus flexilis ‘Vanderwolf ’) — a evergreen tree for USDA zones 4–7

Limber Pine

Pinus flexilis ‘Vanderwolf ’

Tree30–40 ft tallZones 4–7
Worth considering· 5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Evergreen — holds structure through winter
Botanical illustration of Goldenrain Tree (Koelreuteria paniculata) — a deciduous tree for USDA zones 5–9

Goldenrain Tree

Koelreuteria paniculata

Tree20–30 ft tallZones 5–9
Worth considering· 4

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
Groundcover (16)
Botanical illustration of Snow-in-Summer (Cerastium tomentosum) — a evergreen groundcover for USDA zones 3–7

Snow-in-Summer

Cerastium tomentosum

Groundcover0.5–1 ft tallZones 3–7
Good match· 7.5

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Silver foliage contrasts with Rocky Mountain Penstemon
  • Evergreen — holds structure through winter
  • Fire-resistant — good for defensible space
Botanical illustration of Fringed Sage (Artemisia frigida) — a evergreen groundcover for USDA zones 3–7

Fringed Sage

Native

Artemisia frigida

Groundcover0.5–1.5 ft tallZones 3–7
Good match· 7

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Silver foliage contrasts with Rocky Mountain Penstemon
  • Evergreen — holds structure through winter
  • Native to the region, like Rocky Mountain Penstemon
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of Hardy Ice Plant (Delosperma cooperi) — a evergreen groundcover for USDA zones 5–9

Hardy Ice Plant

Delosperma cooperi

Groundcover0.25–0.5 ft tallZones 5–9
Good match· 6.5

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
  • Evergreen — holds structure through winter
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of Yellow Ice Plant (Delosperma nubigenum) — a evergreen groundcover for USDA zones 4–9

Yellow Ice Plant

Delosperma nubigenum

Groundcover0.1–0.25 ft tallZones 4–9
Good match· 6.5

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Evergreen — holds structure through winter
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of False rock cress (Aubrieta deltoidea) — a deciduous groundcover for USDA zones 3–8

False rock cress

Aubrieta deltoidea

Groundcover0.25–0.67 ft tallZones 3–8
Worth considering· 6

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Fire-resistant — good for defensible space
Botanical illustration of Rock Soapwort (Saponaria ocymoides) — a deciduous groundcover for USDA zones 3–8

Rock Soapwort

Saponaria ocymoides

Groundcover0.33–0.42 ft tallZones 3–8
Worth considering· 6

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Fire-resistant — good for defensible space
Botanical illustration of Creeping Juniper (Juniperus horizontalis) — a evergreen groundcover for USDA zones 3–9

Creeping Juniper

Native

Juniperus horizontalis

Groundcover0.5–1.5 ft tallZones 3–9
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Evergreen — holds structure through winter
  • Native to the region, like Rocky Mountain Penstemon
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of Creeping Phlox (Phlox subulata) — a deciduous groundcover for USDA zones 3–8

Creeping Phlox

Native

Phlox subulata

Groundcover0.33–0.5 ft tallZones 3–8
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Fire-resistant — good for defensible space
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Lamb's Ear (Stachys byzantina) — a evergreen groundcover for USDA zones 4–8

Lamb's Ear

Stachys byzantina

Groundcover0.5–1.5 ft tallZones 4–8
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Silver foliage contrasts with Rocky Mountain Penstemon
  • Evergreen — holds structure through winter
Botanical illustration of Mount Atlas Daisy (Anacyclus depressus) — a deciduous groundcover for USDA zones 3–8

Mount Atlas Daisy

Anacyclus depressus

Groundcover0.08–0.17 ft tallZones 3–8
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of Partridge Feather (Tanacetum densum) — a evergreen groundcover for USDA zones 4–8

Partridge Feather

Tanacetum densum

Groundcover0.33–0.5 ft tallZones 4–8
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Silver foliage contrasts with Rocky Mountain Penstemon
  • Evergreen — holds structure through winter
Botanical illustration of Candytuft (Iberis sempervirens) — a deciduous groundcover for USDA zones 3–8

Candytuft

Iberis sempervirens

Groundcover0.5–1 ft tallZones 3–8
Worth considering· 5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Fire-resistant — good for defensible space
Botanical illustration of Creeping Potentilla (Potentilla verna-nana) — a deciduous groundcover for USDA zones 3–8

Creeping Potentilla

Native

Potentilla verna-nana

Groundcover0.17–0.25 ft tallZones 3–8
Worth considering· 5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Hens and Chicks (Sempervivum tectorum) — a evergreen groundcover for USDA zones 3–8

Hens and Chicks

Sempervivum tectorum

Groundcover0.25–0.5 ft tallZones 3–8
Worth considering· 5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Evergreen — holds structure through winter
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of Sea thrift (Armeria maritima) — a deciduous groundcover for USDA zones 3–8

Sea thrift

Armeria maritima

Groundcover0.5–0.83 ft tallZones 3–8
Worth considering· 5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Fire-resistant — good for defensible space
Botanical illustration of Woolly Thyme (Thymus pseudolanuginosus) — a deciduous groundcover for USDA zones 3–8

Woolly Thyme

Thymus pseudolanuginosus

Groundcover0.08–0.17 ft tallZones 3–8
Worth considering· 4.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Fire-resistant — good for defensible space
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Annual (6)
Botanical illustration of Common Sunflower (Helianthus annuus) — a deciduous annual for USDA zones 2–11

Common Sunflower

Native

Helianthus annuus

Annual3–8 ft tallZones 2–11
Good match· 7

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of California Poppy (Eschscholzia californica) — a deciduous annual for USDA zones 2–11

California Poppy

Native

Eschscholzia californica

Annual0.5–1 ft tallZones 2–11
Worth considering· 6

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Native to the region, like Rocky Mountain Penstemon
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of Moss Rose (Portulaca grandiflora) — a deciduous annual for USDA zones 2–11

Moss Rose

Portulaca grandiflora

Annual0.25–0.5 ft tallZones 2–11
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of Bachelor Button (Centaurea cyanus) — a deciduous annual for USDA zones 2–11

Bachelor Button

Centaurea cyanus

Annual1–3 ft tallZones 2–11
Worth considering· 4.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
Botanical illustration of Cosmos (Cosmos bipinnatus) — a deciduous annual for USDA zones 2–11

Cosmos

Cosmos bipinnatus

Annual2–4 ft tallZones 2–11
Worth considering· 4.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
Botanical illustration of Narrowleaf Zinnia (Zinnia angustifolia) — a deciduous annual for USDA zones 2–11

Narrowleaf Zinnia

Zinnia angustifolia

Annual0.75–1.5 ft tallZones 2–11
Worth considering· 4.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
Grass (8)
Botanical illustration of Switchgrass (Panicum virgatum) — a deciduous grass for USDA zones 4–9

Switchgrass

Native

Panicum virgatum

Grass3–4 ft tallZones 4–9
Good match· 7

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
  • Fine grass texture contrasts with Rocky Mountain Penstemon's form
  • Supports pollinators and wildlife
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Feather Reed Grass (Calamagrostis x acutiflora) — a deciduous grass for USDA zones 4–10

Feather Reed Grass

Calamagrostis x acutiflora

Grass3–6 ft tallZones 4–10
Good match· 6.5

Works well together.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
  • Fine grass texture contrasts with Rocky Mountain Penstemon's form
Botanical illustration of Little Bluestem (Schizachyrium scoparium) — a deciduous grass for USDA zones 4–9

Little Bluestem

Native

Schizachyrium scoparium

Grass2–3 ft tallZones 4–9
Worth considering· 6

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
  • Fine grass texture contrasts with Rocky Mountain Penstemon's form
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Blue Grama (Bouteloua gracilis) — a deciduous grass for USDA zones 3–9

Blue Grama

Native

Bouteloua gracilis

Grass1–2 ft tallZones 3–9
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Fine grass texture contrasts with Rocky Mountain Penstemon's form
  • Native to the region, like Rocky Mountain Penstemon
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of Buffalograss (Bouteloua dactyloides) — a deciduous grass for USDA zones 3–9

Buffalograss

Native

Bouteloua dactyloides

Grass0.3–0.8 ft tallZones 3–9
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Fine grass texture contrasts with Rocky Mountain Penstemon's form
  • Native to the region, like Rocky Mountain Penstemon
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of Fountain Grass (Pennisetum alopecuroides) — a deciduous grass for USDA zones 4–9

Fountain Grass

Pennisetum alopecuroides

Grass2–3 ft tallZones 4–9
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
  • Fine grass texture contrasts with Rocky Mountain Penstemon's form
Botanical illustration of Indian Ricegrass (Achnatherum hymenoides) — a deciduous grass for USDA zones 4–9

Indian Ricegrass

Native

Achnatherum hymenoides

Grass1–2 ft tallZones 4–9
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Fine grass texture contrasts with Rocky Mountain Penstemon's form
  • Native to the region, like Rocky Mountain Penstemon
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of Blue Fescue (Festuca glauca) — a evergreen grass for USDA zones 4–8

Blue Fescue

Festuca glauca

Grass0.75–1 ft tallZones 4–8
Worth considering· 5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Evergreen — holds structure through winter
  • Fine grass texture contrasts with Rocky Mountain Penstemon's form
Vine (5)
Botanical illustration of Trumpet Vine (Campsis radicans) — a deciduous vine for USDA zones 4–9

Trumpet Vine

Native

Campsis radicans

Vine15 ft tallZones 4–9
Worth considering· 6

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Supports pollinators and wildlife
  • Fire-resistant — good for defensible space
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Silver Lace Vine (Fallopia aubertii) — a deciduous vine for USDA zones 4–8

Silver Lace Vine

Fallopia aubertii

Vine15–25 ft tallZones 4–8
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
Botanical illustration of Virginia Creeper (Parthenocissus quinquefolia) — a deciduous vine for USDA zones 3–9

Virginia Creeper

Native

Parthenocissus quinquefolia

Vine30–50 ft tallZones 3–9
Worth considering· 5.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Supports pollinators and wildlife
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Common Hops (Humulus lupulus) — a deciduous vine for USDA zones 4–8

Common Hops

Native

Humulus lupulus

Vine20 ft tallZones 4–8
Worth considering· 5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Fire-resistant — good for defensible space
  • Native to the region, like Rocky Mountain Penstemon
Botanical illustration of Western Virgin's Bower (Clematis ligusticifolia) — a deciduous vine for USDA zones 4–8

Western Virgin's Bower

Native

Clematis ligusticifolia

Vine15–20 ft tallZones 4–8
Worth considering· 4.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Different structural layer than Rocky Mountain Penstemon
  • Noticeable height difference for a layered look
  • Native to the region, like Rocky Mountain Penstemon
Perennial (6)
Botanical illustration of Blue Flax (Linum perenne) — a deciduous perennial for USDA zones 3–8

Blue Flax

Native

Linum perenne

Perennial1–1.67 ft tallZones 3–8
Worth considering· 4.5

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Fire-resistant — good for defensible space
  • Native to the region, like Rocky Mountain Penstemon
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of English Lavender (Lavandula angustifolia) — a evergreen perennial for USDA zones 5–9

English Lavender

Lavandula angustifolia

Perennial1–2 ft tallZones 5–9
Worth considering· 4

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Silver foliage contrasts with Rocky Mountain Penstemon
  • Evergreen — holds structure through winter
  • Supports pollinators and wildlife
  • Fire-resistant — good for defensible space
Botanical illustration of Firecracker Penstemon (Penstemon eatonii) — a evergreen perennial for USDA zones 4–8

Firecracker Penstemon

Native

Penstemon eatonii

Perennial1.5–3 ft tallZones 4–8
Worth considering· 4

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Evergreen — holds structure through winter
  • Native to the region, like Rocky Mountain Penstemon
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of Oregon sunshine (Eriophyllum lanatum) — a deciduous perennial for USDA zones 3–8

Oregon sunshine

Native

Eriophyllum lanatum

Perennial0.33–2 ft tallZones 3–8
Worth considering· 4

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Blooms in spring — extends color when Rocky Mountain Penstemon isn't flowering
  • Supports pollinators and wildlife
  • Native to the region, like Rocky Mountain Penstemon
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of Pineleaf Penstemon (Penstemon pinifolius) — a evergreen perennial for USDA zones 4–9

Pineleaf Penstemon

Native

Penstemon pinifolius

Perennial0.5–1 ft tallZones 4–9
Worth considering· 4

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Evergreen — holds structure through winter
  • Supports pollinators and wildlife
  • Fire-resistant — good for defensible space
  • Native to the region, like Rocky Mountain Penstemon
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
Botanical illustration of Russian Sage (Salvia yangii) — a deciduous perennial for USDA zones 4–9

Russian Sage

Salvia yangii

Perennial3–4 ft tallZones 4–9
Worth considering· 4

Compatible on water, sun, and zone. Whether the combination reads well is your call.

  • Blooms in fall — extends color when Rocky Mountain Penstemon isn't flowering
  • Silver foliage contrasts with Rocky Mountain Penstemon
  • Same water needs as Rocky Mountain Penstemon — one irrigation zone
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