General Culture:
Grow in medium to wet soils in full sun to part shade. This iris may be grown in up to 2-4” of shallow standing water (muddy bottom or containers), or in moist shoreline soils or in constantly moist humusy soils of a border. Propagate by division after bloom. Wear gloves when dividing the rhizomes. After fall frost, plant leaves may be trimmed back to about 1” above the crown.
Noteworthy Characteristics:
Iris veriscolor is a clump-forming iris that is native to marshes, swamps, wet meadows, ditches and shorelines from Manitoba to Nova Scotia south to Virginia, Ohio, Illinois and Minnesota. It is a marginal aquatic plant that forms a clump of narrow, arching-to-erect, sword-shaped, blue-green leaves (to 24” long and 1” wide). Flowering stalks rise from the clump to 30” tall in late spring, typically producing 3-5 blue flowers per stalk. Clumps spread slowly by tough, creeping rhizomes. ‘Bridesmaid’ is a cultivar that features flowers with creamy yellow falls and standards blushed with lilac. The rhizomes of this plant are poisonous.
Problems:
No serious insect or disease problems. Susceptible to a number of insect pests including aphids, iris borer and iris thrips. Susceptible to a number of diseases including various rots and viruses.
Uses:
Best grouped in sunny areas of ponds or water gardens. Also may be grown in moist border areas.
© Missouri Botanical
Garden, 2001-2010