Japanese Water Iris 'Rose Queen': Regal Blooms for Waterside Plantings

The Japanese Water Iris 'Rose Queen' (Iris ensata 'Rose Queen') reigns over moist garden areas with its majestic, rose-tinted blooms. This cultivar, also known under the synonym Iris kaempferi, exemplifies the ethereal beauty that has enchanted gardeners since Japanese irises were first introduced to Western horticulture in the 19th century.

Visual Characteristics

Cultivar Profile

Growing Notes

Japanese water irises like 'Rose Queen' have distinct cultural requirements that differ significantly from their bearded cousins. They demand consistently moist, acidic soil rich in organic matter—conditions that mimic their native habitat along Japanese streams and marshes. Plant the rhizomes 2-3 inches deep (deeper than bearded irises) in early spring or fall. They are heavy feeders; incorporate compost or well-rotted manure at planting and fertilize regularly during the growing season. In cold climates, a winter mulch helps protect the crowns. The foliage dies back in winter, re-emerging fresh each spring.