Iris tectorum
Japanese Roof Iris, White Root Iris
Family: Iridaceae Iris
| Type | Perennial |
| USDA Hardiness range | 5B - 9B |
| Exposure | Partial shade to full sun |
| Bloom color | Purple |
| Bloom time | Late Spring to Mid Summer |
| Water needs | Moist |
| Landscape uses | Border, container, massing, seashore |
| Height | 12" to 18" / 30cm to 45cm |
| Spread | 12" to 36" / 30cm to 90cm |
| Growth rate | Moderate |
| Persistence | Deciduous |
| Leaf color | Green |
| Fruit color | n/a |
| Soil pH requirements | Acidic, neutral |
| Soil type | Sandy, clay, loamy |
| Form | Upright or erect |