How to Fertilize bearded iris?
Bulb flower feed monthly before flower stalk development

bearded iris · Iris germanica
Also known as: common German flag; common iris; flag; flag iris; German iris; liberty iris; orrice root; orris root; delicate iris
Grow in well-drained or sharply drained neutral or slightly alkaline soil. Ideal at the base of a sunny wall
Bulb flower feed monthly before flower stalk development