Perennial Hibiscus Care

Overview

Available in seven species ranging in size from a small shrub to taller bushes, hibiscus (Hibiscus) are ubiquitous in warmer states like Florida but can grow in many zones, depending on the species, according to the 1997 Sunset National Garden Book. Some plants can survive freezing weather if the roots are protected, but generally thrive in full sun with regular watering. Hibiscus are available in a variety of colors, including white, pink, purple, yellow and red, and have a showy, delicate flower.

Where to Plant

Select a spot that gets at least six to eight hours of sun, according to AboutHibiscus.com. Though hibiscus can grow in just about any kind of soil, preparing soil by mixing in organic mulch will help a plant thrive. Depending on the variety, hibiscus can grow up to 30 feet tall, though most of the taller varieties top out between 10 to 15 feet. Select a spot where growth will not be inhibited.

How to Plant

Plant the hibiscus in a hole that covers the roots as much as they were in the container, about 6 inches below the surface. Cover the roots with soil and tamp down. Soak the roots with water several times immediately after planting.

Food and Water

Water hibiscus liberally after planting until the roots become established. The soil around the plant should be damp at all times. When well-established, about three months, hibiscus thrive with regular watering, but can tolerate dry soil for short periods of time. Fertilize with a 10-20-10 fertilizer every spring.

Pruning

Hibiscus require little pruning, though you may do so to encourage new growth or shape. Pinch back early in the growing season. This is also a good time to trim out dead limbs. Spent blooms should be picked off the plant.

Cold Protection

Hibiscus in colder zones should be protected from near-freezing or freezing temperatures by covering with a sheet and mulching around the roots. If the plant is in a pot, bring inside during coldest weather to avoid damage. In snowy areas, where the hardiest varieties can survive, cut back plant to 12 inches above the ground after the first frost. When ground is near frozen, mulch heavily.

Keywords: Perennial flowers, Showy blooms, Full-sun plants

About this Author

J.D.Chi is a professional journalist who has covered sports for more than 20 years at newspapers all over the U.S. She has covered major golf tournaments and the NFL as well as writing about travel, health and other issues. Chi received her bachelor's degree in professional writing from Carnegie Mellon University and is working toward her master's in journalism.