About

An upright, herbaceous perennial to 90cm in height, with mid-green leaves composed of small, obovate leaflets. Branched stems produce large fluffy heads of small, dark rose pink-purple flowers in early summer.

About the genus

Thalictrum can be rhizomatous or tuberous perennials with ternately or pinnately divided, often attractive foliage, and panicles or racemes of small flowers with showy stamens and sometimes large colourful petal-like sepals

Growing conditions

SunlightPartial shade
Soil typeChalk, Clay, Loam
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained, Poorly-drained
AspectEast-facing
ExposureSheltered
UK hardinessH5

Plant details

Plant typeHerbaceous Perennial
HabitClump forming
FoliageDeciduous
Height0.5-1 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesCity and courtyard gardens, Cottage and informal garden, Prairie planting, Wildflower meadow
ToxicityContact with foliage may irritate the skin. Wear gloves and other protective equipment when handling

Care notes

CultivationGrow in moist, humus-rich soil in partial shade
PruningCut down stems once flowering is over
PropagationPropagate by seed in pots in a cold frame as soon as seed is ripe or in early spring. Propagate by division in spring as new growth begins
Pest resistanceSlugs may be a problem
Disease resistanceMay be susceptible to powdery mildews in dry conditions