Japanese name: ミナヅキ(水無月) Scientific name:Hydrangea paniculata f. grandiflora
[Overview]
A deciduous shrub 2–3 m tall.
The inner bark contains mucilage.
The leaves are simple and opposite, elliptic, with serrated margins.
Large conical corymbs are produced at the branch tips.
The inflorescence consists almost entirely of white, 4-petaled sterile flowers.
In autumn the sterile flowers change from pale pink to pale green.
[Cultivation]
Propagate by division, cuttings, or layering.
It prefers fertile, well-drained soil in sun to partial shade.
It is not suited to places where the soil becomes extremely dry or that receive strong afternoon sun.
It is easy to grow, vigorous, and flowers well every year.
For potted plants and plants in the ground for less than 2 years, water thoroughly when the soil surface dries.
Plants established in the ground need no particular watering, but if the soil dries out in the high temperatures of summer, water in the morning or evening when the temperature is low.
Apply basal fertilizer, and also slow-release fertilizer in winter at the base of the plant.
There are no particular pests or diseases.