Japanese Astilbe

Astilbe japonica, commonly called [Japanese astilbe](https://www.rhs.org.uk/plants/1831/astilbe-japonica/details) or false spirea, is a clump-forming perennial with glossy, divided leaves and airy plumes of flowers. The species profile describes white flowers in late spring to early summer; horticultural selections can also carry pink or red flowers, so color varies among cultivars. ## Garden use and size Use this astilbe in a shaded border, woodland garden or moist planting beside a pond. [North Carolina State Extension](https://plants.ces.ncsu.edu/plants/astilbe-japonica/) gives a typical height and spread of about 1½–2½ feet, while the [RHS species profile](https://www.rhs.org.uk/plants/1831/astilbe-japonica/details) describes plants to around 80 cm. The range can vary with cultivar and conditions. ## Siting Partial to full shade and consistently moist, rich, well-drained soil help keep the foliage lush. In cooler-summer areas plants may tolerate more sun if the soil stays moist. Astilbes do not tolerate drought well, and hot sun can scorch foliage. ## Maintenance Water through dry spells, especially during the first growing season. Remove spent stems or leave them standing for winter interest, then divide established clumps every few years in spring to keep them vigorous.