Deutzia scabra plena or Rough Deutzia
Deutzia scabra plena
This double variety of rough deutzia from Japan is one of the most widely grown. A deciduous shrub, it reaches a height of about 2.5 m (8 ft) andin June and July. The leaves are short-petioled, opposite, serrate, dull green and hairy on both sides. The flowers are double, white, slightly tinged with pink on the outside, and arranged in narrow, 6- to 12cm-(2 ¼- to 5-in)-long panicles. This variety includes the well-known garden form ‘Pride of Rochester’, which is of upright habit with slightly pendent branches; the flowers are fully double and consist of narrow, white petals striped red on the outside. Another well-known variety is candissima, which forms an upright bush up to 2 5 m (8 ft) high with double, white blossoms.
Rough deutzia may be propagated from seed but is usually increased by vegetative means, by softwood and hardwood cuttings. It needs good gardenand a sunny location. Like the preceding species and most other deutzias it is often grown in parks in groups comprising different species and varieties for height and colour contrast.
The species Deutzia gracilis, a low shrub from Japan barely 1 m (3 ft) high, is often grown for cutting and in pots for forcing.