Japanese name: キバナアマ（黄花亜麻） Scientific name:Reinwardtia indica
[Overview]
An evergreen shrub about 1 m tall, though it is deciduous in cold regions.
It branches well.
The leaves are simple and alternate, elliptic to obovate, 2–8.8 cm long and 0.7–3.3 cm wide, with a pointed tip and either entire or serrated margins.
The flowers are borne at the branch tips; they are deep yellow with 5 petals, 4–5 cm across, and the petal bases are joined.
The fruit is a spherical capsule.
[Cultivation]
Propagate from seed or by cuttings.
It can overwinter outdoors in regions without frost.
In cold regions, grow it in a pot and bring it indoors to a sunny spot in winter.
It prefers fertile, sunny, well-drained soil, but potted plants are better placed in partial shade in summer.
For potted plants, from spring to autumn water thoroughly when the soil surface dries, and keep it on the dry side in winter.
In spring and autumn, apply slow-release fertilizer placed on the soil.
Pests and diseases include aphids, spider mites and scale insects.
