Japanese name: カンチョウジ(管丁字) Scientific name:Bouvardia leiantha
[Overview]
An evergreen shrub 30–80 cm tall.
It grows in clumps and is bushy.
The leaves are ovate and borne in whorls of 3–4.
Cymes are produced at the tips of the twigs.
The flowers are long, tubular and scarlet, and the tip of the corolla is 4-lobed.
[Cultivation]
Propagate by cuttings.
It prefers fertile soil in a sunny, well-drained site.
Growth stops if it dries out, so water plentifully during the growing season.
It is not very cold-hardy and requires a minimum temperature of 10°C or higher; flowering requires even higher temperatures.
If it has sun and good ventilation, disease rarely occurs.
Avoid fertilizing in the cold and hot seasons.