How to Fertilize Iris 'Dardanus'?
Diluted iris feed every three to four weeks during spring bloom

Iris 'Dardanus' · Iris 'Dardanus'
Grow in well-drained neutral or slightly alkaline soil, preferably in a sunny spot. Good for naturalising. See bulbs: naturalising and bulb iris cultivation for further advice
Diluted iris feed every three to four weeks during spring bloom