[Overview]
A perennial.
There are basal leaves and leaves alternate on the stem.
Racemes or panicles bear small flowers.
The flowers are white with 5 petals, and the petals are elliptic-lanceolate to needle-shaped.
There are 10 stamens, which protrude far out of the flower.
The fruit is a capsule with 2 carpels of different lengths.
[Cultivation]
Propagate from seed or by division.
It prefers partial shade to shade and slightly moist, fertile soil that is well drained and well ventilated.
When planting in the ground, it is good to plant it under deciduous trees.
For potted plants, water thoroughly when the soil surface dries; for plants in the ground, water as well if sunny weather continues and the soil becomes dry.
In spring and autumn, apply slow-release fertilizer placed on the soil, so that no fertilizer remains in midsummer.
There are no particular pests or diseases.