Sanguisorba hakusanensis var. hakusanensis(Korean mountain burnet, "Karaitoso")
Japanese name: カライトソウ（唐糸草） Scientific name:Sanguisorba hakusanensis var. hakusanensis
[Overview]
A perennial 30–80 cm tall, found in grasslands and similar places from the subalpine to the alpine zone.
The leaves are of two kinds, basal leaves and leaves alternate on the stem, both odd-pinnately compound.
The leaflets are elliptical, 3–6 cm long and 1.5–3.5 cm wide, with coarse teeth on the margin.
At the branch tips it bears cylindrical spikes 4–10 cm long and 0.8–1 cm in diameter.
The spike is drooping and densely covered with small flowers, which open from the top of the spike downward.
The flowers have no petals; the calyx is reddish purple, the 6–12 stamens are pale reddish purple, and the anthers are yellowish brown to dark purple.
The whole spike looks pale reddish purple.
The fruit is an achene.
[Cultivation]
Propagate from seed or by division.
It suits a cool climate and prefers a sunny, well-drained, well-ventilated, fertile and slightly moist soil.
Avoid dry places and places where water stagnates.
For potted plants, water thoroughly when the soil surface dries; for plants in the ground, rainfall is sufficient unless summer brings a long sunny spell and the soil dries out.
In spring, apply a small amount of slow-release fertilizer.
There are no particular pests or diseases.
