[Overview]
A biennial or perennial.
The whole plant is densely covered with white hairs.
The leaves are alternate, lanceolate to linear, with entire margins.
The flowers are borne in cymes to scorpioid cymes, in blue, purple, white and other colors, and the corolla is 5-lobed.
There are 5 stamens.
The calyx is 5-lobed.
The fruit is a schizocarp.
[Cultivation]
Propagate from seed.
It prefers a sunny, well-ventilated site with fertile, well-drained soil.
Rainfall is sufficient for watering.
Fertilizer is not particularly necessary.
To prevent the plant from becoming stuffy in summer, it helps to thin out crowded branches.
If you do not collect seeds, remove spent flowers promptly after flowering.
There are no particular pests or diseases.
