Japanese name: シキンカラマツ（紫錦唐松、紫金唐松） Scientific name:Thalictrum rochebruneanum
[Overview]
A perennial 0.5–2 m tall, found in moist grasslands in broadleaf forests in the mountains.
The stem branches.
The stem and inflorescence axis are usually tinged with purple.
There are basal leaves and stem leaves; the basal leaves have withered by the flowering period.
The stem leaves are alternate and 3–5 times ternately compound.
The leaflets are round to obovate, sometimes shallowly 3-lobed.
A panicle at the stem tip bears many flowers.
The flowers have no petals but have pale purplish red, petal-like sepals.
The many stamens are conspicuous.
The fruit is an achene.
[Cultivation]
Propagate from seed or by division.
It prefers fertile soil that is well drained and retains water well.
Give it sun from autumn to spring, and keep it cool in partial shade in summer.
When planting in the ground, plant it under deciduous trees.
Take care that it does not dry out; from spring to autumn, water thoroughly when the soil surface dries, and in winter avoid letting it become extremely dry.
Apply basal fertilizer, and also place slow-release fertilizer on the soil in spring and autumn, making sure no fertilizer remains in midsummer.
Pests and diseases include soft rot, powdery mildew, spider mites and aphids.
