How to Water false goat's beard?
Keep soil consistently moist to wet, never allowing roots to dry

false goat's beard · Astilbe biternata
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