iris 'White City' · Fertilizing

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; sun on the rhizomes encourages flowering. Give a high potash feed in spring and divide every three to four years. See also bearded iris cultivation

Watering: Water deeply once a week during dry weather, reduce in dormant season.Sunlight: Full sunHarmful if eaten. Wear gloves and other protective equipment when handling

Apply a balanced fertilizer in early spring and again after blooming.

How to Fertilize iris 'White City'?