How to Fertilize yellow flag 'Roy Davidson'?
Light balanced feed during spring and summer growth

yellow flag 'Roy Davidson' · Iris pseudacorus 'Roy Davidson'
Grow in moist to wet, deep, humus-rich, acid soil; it thrives at the margins of large ponds or streams; has the potential to become a nuisance if not managed well so plant with care
Light balanced feed during spring and summer growth