About
A reliable perennial, reaching 20-60cm, with an upright form with healthy leaves. It bears attractive blooms. 'Alice Howarth' is valued in garden settings.
About the genus
Penstemon may be deciduous or evergreen perennials or subshrubs, with simple, narrow leaves and racemes or panicles of bell-shaped or funnel-shaped flowers in summer and early autumn
Plant details
Suggested usesBorders, cottage gardens
Care notes
CultivationFertile, moist but well-drained soil
PruningCut back in late autumn or spring
PropagationDivide every 3-4 years
Pest resistanceSlugs and snails possible
Disease resistanceMildew in dry conditions