Chinese Hibiscus Tree

Plant Bio

Care of Hibiscus rosa-sinensis

There are several hundred species in the Hibiscus genus, but this care sheet focuses on Hibiscus rosa-sinensis, also known as tropical hibiscus, Chinese hibiscus, and Hawaiian hibiscus. Their magnificent blooms may only last a day, but their colors, size and number make up for this all too brief interlude.

Note: There are hundreds of hibiscus cultivars available, each one having slightly different cultural needs.  General requirements for many of these plants are described below. Some varieties might be more cold-tolerant, grow larger or smaller, etc.  Before buying any plant, be sure to know its individual characteristics and care requirements.

Plant Specifications

Hibiscus rosa-sinensis is are vigorous grower known for its beautiful flowers. Their size ranges from as small as 2 inches in diameter to nearly 10 inches, with most falling somewhere in between. They come in a kaleidoscope of colors and shades. Single or double flowers are available. Most grow as a large shrub and can reach 4-10 feet tall and 3-6 feet wide. This plant, native to Southeast Asia, is the national flower of Malaysia.

Uses

These hibiscuses are known for their glossy evergreen foliage and large, bold flowers. Plants can be grown in containers and give a tropical feeling on a deck or patio, or around a pool. A well-maintained plant can serve as a showy specimen, while groups of them can act as a screen for privacy. They also make for a great foundation planting in warmer climates.

Light

In general, the more sun this plant gets, the better.  Hibiscus rosa-sinensis prefers full sun but will tolerate light shade. The more shade the plant gets, the fewer and likely smaller flowers it will produce. If overwintering, try to place near a southern or western-facing window.

Pruning

Hibiscus require little pruning during the growing season unless space is an issue. Cut back the plant by about half in the early spring to maintain a nice shape and encourage growth. More frequent and lighter pruning may be needed throughout the year for hibiscus that are grown indoors. The plants flower on new wood, so pruning any time during the year won’t stop flowering completely, just delay it.

Water

Hibiscus don’t like to dry out and prefer an evenly moist root ball. After planting in the ground, it is important to give supplemental water the first year as needed until the plant is well established. When potting, choose a container that is sized to the plant. A pot that is too large or too small will make it difficult to keep the plant properly watered.  Check your plant daily. Over time, you will get to know it and its water requirements and make adjustments according to how much sun or rain is in the forecast.