[Overview]
A perennial.
The leaves are of two kinds: basal leaves and leaves arranged alternately on the stem; the basal leaves are large and have petioles, while the leaves on the upper part of the stem are small and linear.
A head-like or spike-like inflorescence is produced at the stem tip.
The flowers have a distinctive shape.
The corolla is deeply 5-lobed, and the lobes are narrow and spreading or reflexed.
Five stamens and one pistil protrude far out of the flower.
The fruit is a capsule.
[Cultivation]
Propagate from seed or by division.
It prefers a sunny, well-drained, well-ventilated place.
It dislikes heat and humidity.
Water after the soil surface has dried, taking care not to make the soil too wet.
Light feeding is enough; give diluted liquid fertilizer in spring and autumn, or place a small amount of slow-release fertilizer on the soil, making sure no fertilizer remains in midsummer.
There are no particular pests or diseases.