How to Water Iris 'Silverado'?
Water moderately, let surface dry slightly between irrigations

Iris 'Silverado' · Iris 'Silverado'
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
Water moderately, let surface dry slightly between irrigations