iris 'Sulphureux' · Fertilizing

iris 'Sulphureux' · Iris 'Sulphureux'

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: Medium watering rate, rhizome substrate damp without standing water poolsSunlight: Full sunHarmful if eaten. Wear gloves and other protective equipment when handling