
From early summer to mid-autumn, upright flower spikes rise above the clumps of semi-evergreen foliage, bearing white-throated, plum-purple flowers. An invaluable late-flowering gap-filler, it mixes easily with ornamental grasses.
How to care for Penstemon Pensham Plum Jerkum (Pensham Series):
Remove the faded blooms regularly to prolong flowering. Apply a dry mulch around the base of the plant to protect the roots from frost damage in autumn. Leave the old foliage to protect the new shoots from frost and then cut it back by a third in spring.
Flowering period:
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Eventual height:
0.7m
Eventual spread:
0.4m
Position:
Full sun / light shade
Rate of growth:
Average
Soil:
Moderately fertile, moist, well-drained soil
Hardiness:
Borderline hardy (will need protection in winter in colder areas)
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This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.