Valued for the purple-stained base to leaves and purple flower stems which carry blue flowers in midsummer. Will grow in shallow water or heavy, retentive soil. Harmful if eaten.
Iris x robusta 'Gerald Darby'
Details
| Aspect | Sun or part shade |
| Flower Colour | Blue | Purple |
| Flowering Period | May | Jun |
| Foliage | Not evergreen |
| Goes Well With | Astilbe, Gunnera, Houttuynia |
| Growth Habit | Clump-forming |
| Hardiness | Fully hardy |
| Height | 90cm |
| Soil | Wet, boggy |
| Spread | 50cm |
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