Scarlet Rose Mallow Hibiscus coccineus

Scarlet rose mallow is an herbaceous perennial in the Malvaceae (mallow) family. It is native to the southeastern United States and is sometimes called swamp hibiscus because it is native to marshes and swamps in Alabama, Georgia, and Florida. It can grow 6 to 8 feet tall and 2 to 3 feet wide. 

It can be grown outdoors in coastal and piedmont regions of North Carolina. Plant in locations with full sun to partial shade and with moist, occasionally wet soils. Propagation is through seed or stem cutting. This plant is slightly salt tolerant.

Flowers of red hibiscus mature in late summer to early fall and are very large and striking, up to 6 inches wide. The large, bold leaves add to the striking effect. It can be used in wet areas, such as beside ponds or in boggy areas. 

Scarlet rose mallow is a large plant for the rear of the perennial border, mixed border, or courtyard. It is also effective when grouped in moist locations along edges of ponds and streams or in a rain or pollinator garden. Hibiscus does tolerate pruning, but keep in mind that flowers will appear on new growth. This plant is susceptible to damage from deer.  The flowers of the plant are attractants for hummingbirds, pollinators, and butterflies and are a wildlife food source.

Insects, Diseases, or Other Plant Problems: It has some susceptibility to blight, canker, rust, leaf spots, aphids, scale, whiteflies, and Japanese beetle. Taller plants may need staking.

VIDEO Created by Elizabeth Meyer for "Trees, Shrubs and Conifers" a plant identification course offered in partnership with Longwood Gardens.