How to Water astilbe 'Raspberry'?
Keep soil consistently moist to wet, never allowing roots to dry

astilbe 'Raspberry' · Astilbe 'Raspberry'
Grow in moist but well-drained or boggy soil in dappled shade, or in indirect sun where the soil remains moisture-retentive in summer. Drought intolerant, may be damaged in hot sun. Good for waterside planting. See Astilbe cultivation
Keep soil consistently moist to wet, never allowing roots to dry