This dramatic-flowered penstemon brings large lilac-purple (and occasionally white to pink), open, tubular flowers, from plump purple buds during the summer. Native the the central prairies of the USA. Free-draining soil and sun.
Penstemon cobaea
Prairie beard-tongue
Details
| Aspect | Full sun |
| Flower Colour | Blue | Purple |
| Flowering Period | May | Jun | Jul | Aug |
| Foliage | Not evergreen |
| Growth Habit | Clump-forming |
| Hardiness | Fully hardy |
| Height | 50cm |
| Soil | Light, well-drained |
| Spread | 40cm |
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