Iris tectorum Common Name: roof iris Type: Herbaceous perennial Family: Iridaceae Native Range: Central and southwestern China, Myanmar Zone: 4 to 9 Height: 1.00 to 1.50 feet Spread: 1.00 to 1.50 feet Bloom Time: May Bloom Description: Deep lilac-blue purple with white crest Sun: Full sun to part shade Water: Medium Maintenance: Low Suggested Use: Naturalize Flower: Showy, Good Cut Tolerate: Deer, Drought Grow in organically rich, medium moisture, well-drained soil in full sun to part shade. Prefers sheltered sunny locations, as near a south or west facing wall. Plant rhizomes only about 1-2" below the soil. Rhizomes tend to push out of the ground and will benefit from fall and spring mulches. Iris tectorum is a 15" tall species of the crested iris group featuring large, 6" across, beardless, bright lilac-purple flowers with falls which are crested white. Foliage is arranged in fans of narrow, lance-shaped, ribbed, glossy, upright leaves that can become somewhat floppy. Can spread rapidly in the garden. Commonly called roof iris because it has in the past been grown on thatched roofs in both Japan and China. Posted by 25 seeds per packet
Iris tectorum 'Japanese Roof Iris'