About
A clump-forming perennial with upright stems to 90cm tall clothed with sharply-toothed leaves and spikes of densely-packed, white, tubular flowers followed by green seed pods.
About the genus
Physostegia are erect rhizomatous herbaceous perennials with neatly arranged pairs of toothed leaves and terminal racemes of 2-lipped, tubular flowers in summer
Growing conditions
SunlightFull sun, Partial shade
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained
AspectSouth-facing, East-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH7
Plant details
Plant typeHerbaceous Perennial
HabitClump forming
FoliageDeciduous
Height0.5-1 metres
Spread0.5-1 metres
Time to full height2-5 years
Suggested usesCottage and informal garden
Care notes
CultivationGrow in moist but well-drained, moderately fertile soil in full sun or partial shade
PruningCut back to the base in winter
PropagationPropagate by division in early spring
Pest resistanceGenerally pest-free
Disease resistanceMay be suceptible to rots if the rhizomes are damaged