How to Fertilize iris 'Ann Chowning'?
Diluted iris feed every three to four weeks during spring bloom

iris 'Ann Chowning' · Iris 'Ann Chowning'
Grow in reliably damp soil that is rich in organic matter in a sun or partial shade. Can be grown as a marginal plant in ponds and along streamsides.
Diluted iris feed every three to four weeks during spring bloom