Japanese name: イトバハルシャギク(糸葉波斯菊) Scientific name:Coreopsis verticillata
[Overview]
A perennial 20–100 cm tall.
It has a rhizome.
The leaves are whorled and deeply divided into 3–9 bird's-foot-like lobes, with linear to thread-like segments.
The leaves on the upper part of the stem are simple, linear to thread-like.
A flower head about 5 cm across is borne at the stem tip.
Both the ray florets and the tubular florets are bright yellow.
The fruit is an achene.
[Cultivation]
Propagate from seed or by division.
It grows well in any soil as long as the site is sunny and well drained.
For potted plants, water thoroughly when the soil dries; for plants in the ground, rainfall is sufficient.
Fertilizer is not particularly necessary.
There are no particular pests or diseases.