How to Fertilize iris 'Dancer's Veil'?
Use a bone-meal or low-nitrogen fertilizer in early spring and after blooming.

iris 'Dancer's Veil' · Iris 'Dancer's Veil'
Grow in well-drained, fertile, neutral to slightly acidic soil in full sun. Do not cover the rhizomes with mulch, or allow other plants to shade them. See also bearded iris cultivation
Use a bone-meal or low-nitrogen fertilizer in early spring and after blooming.