Border Builder

Showy Penstemon

Penstemon spectabilis

Illustration of Showy Penstemon

Showy Penstemon is a perennial for focal point, mid-border, suited to full sun and loam or sandy soil, flowering Mar, Apr, May, Jun.

TypePerennial
Mature height120 cm
Spread60 cm
Aspectfull sun
FoliageDeciduous
HardinessUSDA 8a-10b, RHS H4
Pollinator-friendlyYes
Pet-safeYes

Where to use it in a border

At around 120 cm, it sits best toward the back of a border, or on its own as a focal point with room around it. Give it about 60 cm of room to spread. It is hardy across USDA zones 8a to 10b and rated H4 by the RHS, so check it suits your area before planting.

It appears in our lists of full sun, sandy soil, pollinator-friendly plants, pet-safe plants.

Border Builder uses Showy Penstemon's height, spread, soil, bloom months and companions to place it in a full border plan for your own conditions, on iPhone and iPad.

Download on the App Store

Flowering through the year

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Worth knowing

Good companions

Plants that share its conditions and style, chosen to complement its place in the border:

Garden styles

Coastal Mediterranean Modern Xeriscape (low-water)

Sources

Bloom timing and hardiness drawn from: