About
This upright perennial to 1.5m tall, with deeply toothed, ovate leaves and lax racemes of two-lipped, purplish-pink flowers to 10cm long in summer and autumn.
About the genus
Rehmannia are erect perennials with large leaves in basal rosettes, and large, 2-lipped, trumpet-shaped flowers
Growing conditions
SunlightFull sun, Partial shade
Soil typeChalk, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureWell-drained
AspectSouth-facing, East-facing, West-facing
ExposureSheltered
UK hardinessH3
Plant details
Plant typeBedding, Herbaceous Perennial
HabitBushy
FoliageDeciduous
Height1-1.5 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesCity and courtyard gardens, Cottage and informal garden
Native toChina (Hubei)
Care notes
CultivationGrow in full sun or light shade in well-drained soil in a sheltered site. Can be lifted in autumn and overwintered in a cool, dry frost-free place
PruningNo pruning required but remove spent flower stems by deadheading
PropagationPropagate by seed in late winter; take softwood cuttings in spring or root cuttings in late autumn
Pest resistanceSusceptible to slugs and snails
Disease resistanceGenerally disease-free