Iris prismatica (Slender blue iris)
Other names: Slender blue flag, Coastal iris, Iris prismatica var. austrina, Iris carolina, Cube seed iris, Limniris prismatica, Iris boltoniana, Iris gracilis, Iris trigonocarpa
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Species
I. prismatica is a clump-forming, rhizomatous, deciduous perennial with grass-like, mid-green leaves and erect stems bearing clusters of veined, beardless, violet-blue flowers in summer.
Season of interest
Flower | ||||
|---|---|---|---|---|
| Spring | Summer | Autumn | Winter | |
| Flower | ||||
Foliage | ||||
| Spring | Summer | Autumn | Winter | |
| Foliage | ||||
Height and spread
Height and spread | |||
|---|---|---|---|
| Size | Max height | Max spread | To maturity |
| 0.8 m | 0.5 m | 2-5 years | |
| 2 ft | 1 ft | 2-5 years | |
Where to grow
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