How to Water Delavay iris?
Evenly moist muddy loam, suited for cool damp waterside garden spots

Delavay iris · Iris delavayi
Grow in any good garden soil that is preferably moist but not waterlogged. In drier soils, dig in well-rotted organic matter before planting then apply as a mulch each spring
Evenly moist muddy loam, suited for cool damp waterside garden spots