What Are the Moisture Requirements for astilbe 'Opal'?
Moist but well drained · Poorly drained

astilbe 'Opal' · Astilbe 'Opal'
Grow in moist, fertile, humus-rich soil in full sun, or in partial shade if soil is likely to dry out in the summer. Plants must be divided every three to four years to maintain vigour
Moist but well drained · Poorly drained