Hardy to zone 4, this hardy hibiscus boasts unique foliage and flower color combination. Its 6-to-8-inch magenta red flowers earn this plant the nickname of “dinner plate Hibiscus” because of the sheer size of the flowers. Dark olive-green, maple-like leaves form a full, billowy habit. Flowers are produced from the top to the bottom of the plant, rather than only at the top like some older cultivars.