- A compact shrub with erect, arching shoots. It grows to a height of approximately 1-1.5 m in one growing season.
- The leaves are lanceolate, with slightly hairy undersides.
- It blooms on the current year’s growth.
- The bluish-purple flowers, gathered in panicles approximately 20 cm long, are fragrant and honey-producing, attracting numerous insects. It blooms from July to September.
- It thrives best in warm, sunny or lightly shaded locations; it prefers fertile, moist soil.
- It tolerates difficult urban conditions and is perfect for both the allotment and park settings.
- It is not fully frost-hardy, so it is advisable to cover the base of the shrub. The shoots do not wood sufficiently before winter and are often frost-damaged, but with heavy annual pruning, they regrow and bloom well. It regenerates quickly in spring.
