Superb Penstemon

Penstemon superbus

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

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 45 cm of room to spread, roughly 2 to the metre when planted in a drift. It is hardy across USDA zones 7a to 10b and rated H5 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 Superb 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.

Flowering through the year

Worth knowing

• Its flowers are valued by bees and other pollinators.

Good companions

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

• Angelita Daisyto edge in front
• Aztec Lilyto edge in front
• Black Daleato edge in front
• Blackfoot Daisyto edge in front
• Century Plantfor height behind it
• Chihuahuan Sageto flower when it does not

Garden styles

Modern Wildlife garden Xeriscape (low-water)