Deutzia scabra var. scabra ("Marubautsugi")

Japanese name: マルバウツギ （丸葉空木）
Scientific name: Deutzia scabra var. scabra

[Overview]
A deciduous shrub about 1.5 m tall, found in sunny places such as mountain and field slopes and riverbanks.
The trunk and branches are hollow.
It branches freely.
Young branches are tinged with purplish brown and densely covered with stellate hairs.
Leaves are simple and opposite, ovate to elliptic, 3.5–7 cm long and 2–4 cm wide.
Both surfaces of the leaves are sparsely covered with stellate hairs and feel rough, and the margins have fine serrations.
The petiole is 3–6 mm long and densely covered with stellate hairs.
Panicles are produced at the branch tips.
The inflorescence has stellate hairs, and the leaves below the inflorescence have no petioles and clasp the stem.
The flowers are white, bell-shaped, 5-petaled and about 1 cm across.
The calyx is densely covered with stellate hairs.
The fruit is a woody, cup-shaped capsule 3 mm across, with the style remaining at the tip.

[Cultivation]
Propagate by cuttings.
It prefers fertile, sunny, well-drained, airy soil.
It tolerates partial shade and dryness.
It is hardy and grows well even when left alone.
For potted plants, water thoroughly when the soil surface dries.
For plants in the ground, rainfall is sufficient.
Apply organic fertilizer in winter by digging a fairly deep hole around the plant and burying it.
When applying slow-release fertilizer after flowering as a thank-you fertilizer, dig a hole in the same way.
Prune in June, immediately after flowering.
Avoid pruning later, because the flower buds for the following year form once summer arrives.
Powdery mildew may occur.

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