Hibiscus syriacus L.
Rose of Sharon, Shrub Althea| Category |
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| Shrub |
Description
ibiscus syriacus is the national flower of South Korea. Rose of Sharon is a deciduous, flowering shrub that is 8' to 10' tall and 6' to 8' wide. upright, spreading branching that develope a vase-shaped outline that is often leggy at the base. multi-stemmed with lots of vertical branches.Stem
Bark is thin and easily damaged from mechanical impact; droop as the tree grows, and will require pruning for vehicular or pedestrian clearance beneath the canopy; routinely grown with, or trainable to be grown with, multiple trunks; not particularly showy; no thornsLeaves
Leaves are alternate, simple, ovate to rhomboid in shape with a dentate margin, 2 to 4 inches long.Flowers
Produces large, showy blossoms in July, August, and September with white, pink, magenta, violet, or blue corolla or combinations of these colors, 2" to 4" across with single 5-petaled flowers or double, solitary on current season's growth.Fruit
A brown 5-valved capsule that is 0.75" long and persists through the winter.Images
Images of Hibiscus syriacusLife History
3. HabitatSun to partial shade; prefers moist, well-drained soil. Tolerant of alkaline soils.
Origin and Distribution
Native to China and Indiah2. Management Recommendations
Mechanical Controls
Manage height and size by trimming or cutting; remove entire plants by digging up entire root systemHerbicidal Controls
It can be effectively controlled using any of several readily available general use herbicides such as glyphosate. Follow label and state requirements.Bibliography
Gilman, E.F. and Watson D.G. November 1993. Fact Sheet ST-295. US Forest Service. Hibiscus Syriacus Rose-of-Sharon. Fact Sheet"USDA Forest Service":http://www.na.fs.fed.us/fhp/invasiveplants/weeds/rose-of-sharon.pdf