Astilbe chinensis 'Superba'
flower stalks up to 80 cm high
lavender - magenta
August - September
fertile, well drained, moist, humus rich
acid - neutral - alkaline
The genus Astilbe belongs to the Saxifragaceae family. Most species are native to E-Asia. They need fairly moist soil and a sunny, sheltered position. Many cultivars flower too late for Icelandic conditions and it's therefore important to choose early flowering cultivars.
Division in spring.
Flowering is pretty reliable, except in the coolest of summers. Spreads slowly with rhizomes.