Japanese name: ナツシロギク（夏白菊） Scientific name:Tanacetum parthenium
[Overview]
A perennial about 30–80 cm tall.
The base of the stem becomes woody.
The leaves are alternate, deeply pinnately divided, with the lobes further shallowly divided.
Many flower heads are borne in corymbs at the stem tips; each head has white ray florets around the edge and yellow tubular florets in the center.
The fruit is an achene.
[Uses]
In Europe it has long been used medicinally.
[Cultivation]
Propagate from seed or by stem cuttings.
It prefers a sunny, well-drained, well-ventilated place.
It dislikes heat and humidity, so it is best kept on the dry side: for potted plants, water thoroughly after the soil surface has dried; for plants in the ground, rainfall is sufficient.
Apply base fertilizer, and also place slow-release fertilizer on the soil in spring and autumn.
Aphids can be a pest.
