Iris, Crested

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Image copyright Joe Gadbois. Iris cristata Violet-blue flowers with white crests in late spring to early summer. Forms a low spreading clump. Ideal for woodland gardens. Humus-rich , moist, well-drained soil. Pt. shade. Ht. 10-15cm (4-6 in.) Sp. 30-45cm (12-18 in.) Zone 3 Show more