Rose of Sharon
Valued in the garden for its large flowers produced in summer. Valued as a bonsai for its upright habit, open and loose branches, light green leaves which can all be enhanced with pruning. Moderate salt tolerance.
Part shade to full sun
Zones 5B - 9A.
Adequate water to keep from drying out and remaining dry. Requires ample water to flower its best and to avoid leaf drop.
General purpose fertilizer.
Pruning and wiring:
Bark is thin and is easily damaged.
The tree needs annual repotting. Not particular about the type of soil, however it should be well drained and acidic.
Pests and diseases:
Aphids and Japanese beetles. Diseases include leaf spot, canker and flower blight.
United States Department of Agriculture, Forest Service, Fact Sheet ST-295
Compiled by Thomas L. Zane