";s:4:"text";s:2220:" Sweet Flag Iris Gallery. This handsome Iris species belongs to an ancient group, dating to the seventeenth century, that was the ancestor to our modern Tall Bearded Iris. Japanese sweet flag grass (Acorus spp.) Propagating variegated sweet flag: By division. Get expert gardening tips on the Sweet Flag. How much sun, shade, water and care does it need? ... Sword-shaped leaves resembling those of bearded iris are 1 inches wide, 45 feet long, growing in a clump about 2 … Smell the foliage and/or rhizome. 2 of 3. Uses for variegated sweet flag: The variegated sweet flag is the perfect vertical accent plant for pond edges or bog gardens. It adapts to both sun and partial shade. Despite its common name, Japanese sweet flag grass is not an ornamental grass but instead is a perennial that spreads by underground rhizomes. These basal leaves are erect and sword-shaped, resembling the basal leaves of Iris spp. Early American settlers grew Iris pallida types because they were easy to transport across the Atlantic and the continent. A clump or two rising from the middle of a pool also creates quite a dramatic effect. (Irises), but more green. is a perennial aquatic plant with sword-like leaves that resemble those of iris.It is often used along the borders of landscape ponds and other water features. 3 of 3. 1. Sweet Flag Acorus calamus Sweet Flag family (Acoraceae) Description: This perennial plant is 1–3½' tall, consisting of tufts of basal leaves that emerge directly from a spreading rootstock. 3. The two plants share many similar traits, though the flowers of southern blue flag are frequently a lighter violet-blue. But both perennials are indigenous to eastern North America.