Bulbs, Perennials, Weeds > Iris > Iris japonica > Iris japonica
Iris japonica
Shaga, Japanese Crested Iris, Japanese Iris
Origin: Temperate and tropical Asia.
| Family |
| Iridaceae |
| Genus |
| Iris |
| Species |
| japonica |
| Category |
| Bulbs, Perennials, Weeds |
| Synonyms |
| Evansia chinensis, Evansia japonica, Iris chinensis, Iris fimbriata, Moraea fimbriata |
| USDA Hardiness Zone |
| 7a - 10b |
| Canadian Hardiness Zone |
| Requires cold season protection under glass. |
| RHS Hardiness Zone |
| H6 - H2 |
| Temperature (°C) |
| -17.7 - 1.7 |
| Temperature (°F) |
| 0 - 35 |
| Height |
| 30-45 cm |
| Spread |
| 30-45 cm |
Photographs
Cultivars
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Description and Growing Information
Flowering Period
| Landscape |
| Excellent ground cover in areas where it is winter hardy. |
| Cultivation |
| Grown in medium moisture, well-drained soils in full to part shaded areas. |
| Shape |
| Upright. |
| Growth |
| Medium |
| Habitat |
| A woodland iris that is native to forest margins and wet grasslands in Japan and China. |
| Leaf Description |
| Thin, semi-glossy, sword-shaped basal leaves 25 - 40 cm long, and grow in fans with downward arching tips. |
| Flower Description |
| Pale blue to white with yellow crests. |
| Colour Description |
| Medium green to deep green foliage and stems. Pale blue to white with yellow crests blooms. |
| Texture Description |
| Smooth. |
| Notable Specimens |
| Trebah Garden Trust, Mawnan Smith, Falmouth, Cornwall, United Kingdom. |
| Propagation |
| Seed or division of rhizomes. |
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