About
Produces blue-green leaves composed of leaflets and in early summer large nodding, purpleflowers in loose sprays on vigorous upright stems.
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
SunlightFull sun, Partial shade
Soil typeClay, Loam
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained
AspectWest-facing, South-facing, North-facing, East-facing
ExposureSheltered
UK hardinessH7
Plant details
Plant typeHerbaceous Perennial
HabitClump forming
FoliageDeciduous
Height1-1.5 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesCottage and informal garden, Prairie planting, Wildlife gardens
Native toChina (Yunnan)
ToxicityContact with foliage may produce a mild skin irritation. Wear gloves and other protective equipment when handling
Care notes
CultivationGrow in moist, humus-rich soil in partial shade
PruningSpent flowers should be removed to prevent over abundance of self sown-seedlings; cut down foliage in late winter or early spring
PropagationPropagate by division in spring as new growth begins
Pest resistanceSlugs may be a problem
Disease resistanceMay be susceptible to powdery mildews in dry conditions