How to Water Siberian iris 'Regency Belle'?
Deep water infrequently, avoid water covering rhizome crowns

Siberian iris 'Regency Belle' · Iris 'Regency Belle'
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
Deep water infrequently, avoid water covering rhizome crowns