Cold Hardy Hibiscus
That being said hibiscus moscheutos also called rose mallow or swamp mallow is a zone 4 hardy hibiscus that was developed in the 1950s by the three fleming brothers.
Cold hardy hibiscus. Spectacular flowering blue marlin hibiscus cold hardy potted plant great as a accent plant starter plant. Although there are hundreds of hibiscus species only a few dozen are cold hardy here in the southern us. Pinch the shoots of young plants in early summer to encourage branching and more flower stalks to form. The beautiful blooms of the hibiscus are often associated with warm and tropical areas especially hawaii but there are plenty of varieties that those of us in colder regions can enjoy.
The most hardy hibiscus can survive to minus 10 degrees f. 1 the giant flowered dieback species known as scarlet rose mallow or swamp rose mallow and 2 the. Hardy hibiscus shrubs supply the garden with all the beauty of a tropical hibiscus but they can withstand cold winter temperatures that kill the tropical types. The hues of the most common cultivars are white bicolored or various shades of red or pink but other colors are now available.
Hardy hibiscus is slow to emerge in spring in cold areas so be patient. Hibiscus plants flower in the summer in cold weather regions and may bloom until the first frost. Growing hibiscus in zone 7 means finding cold hardy hibiscus varieties that can withstand some of the colder temperatures in this growing region. Tropical splendor in a zone 5 garden august 30 2017 summer perennials tips and tricks gorgeous hibiscus a dramatic perennial with large flowers were first discovered in the swamps and marshes of the southern part of united states.
They may not pop out of the ground until june. These plants thrive in full sun with regular water. The hardy hibiscus is a cold hardy plant despite bearing large blooms that call to mind the tropics. Hardy hibiscus can also self sow and become weedy.
Here at plant delights nursery we grow several species of hardy hibiscus plants that fall into two groups.