Hibiscus seems exotic. We think of India or Mexico, of sarong-clad Hawaiians with a single blossom tucked behind the appropriate ear. Yet some of the most spectacular hibiscus are native to temperate North America, where they bloom happily and easily in summer gardens as far north as Zone 4. They appear late in the season, after midsummer. Each bud lasts only a day, but there are many, which means that hibiscus can flower for weeks when few other perennials are in bloom.
Hibiscus moscheutos (swamp rose mallow) grows wild near ponds, salt marshes, and upland wetlands from Massachusetts to Wisconsin, Florida to Texas. You may come upon the huge, simple flowers -- clear pink or white -- swaying on six-foot stems among reeds or grasses. Wherever they grow becomes a wonderland. Source
Hibiscus 'Kopper King'
Immense 12" light pink flowers with a bright burgundy eye that streaks out to the edge of the petals. Blooms from mid summer to late fall. Leaves have a striking copper-red color.
Hibiscus Summerific™ 'Berrylicious'
"Berrylicious" offers huge 8-9in, mauve-lavender blooms with a deep strawberry eye and ruffled, overlapping petals over bushy bright green, maple-like leaves. This Hibiscus is a indeterminate bloomer, so there are buds at many nodes up the stems resulting in a much longer season of bloom and flowers that cover all sides of the plant.
Hibiscus Summerific™ 'Cranberry Crush'
'Cranberry Rush' features large 7-8" glossy deep scarlet flowers over a dense rounded clump of leathery green maple-like leaves.A profuse indeterminate bloomer, it is irresistible to hummingbirds even into fall.
Hibiscus 'Summer Storm'
A Hibiscus with dark purple foliage and large pink flowers that bloom throughout late summer and early fall.
Hibiscus 'Sultry Kiss'
Sultry Kiss' hibiscus displays brilliant, deep red buds that open to 9-11 inch wide, overlapping, purple-red flowers. This hibiscus forms an upright mound of foliage that is well-branched with maple-like, dark green leaves that are bronze when they first emerge and then mature to a dark green with reddish-purple stems.