Iris_cristata, Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 1: 540.
Sunset®: 3-7,15-17
USDA: 3-9
Sun Exposure: Full sun to part shade
Origin: Eastern United States, on shady hillsides
Growth Habits: Herbaceous perennial, 6 to 9 inches tall (15-23 cm), 6 to 12 inch spread (15-30 cm)
Flowers: White or light blue flowers
Watering Needs: Keep soil moist, particularly if kept in locations in full sun, likes good drainage
Propagation: Division of rhizome in early fall
Iris cristata in Curtis Botanical Magazine
A rapidly spreading plant, it can be used as a groundcover.
Propagation:
Pale blue, lilac, lavender or white ( the cultivar 'Alba') with gold-crested falls flowers, on very short stems, in mid spring.
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