Rose of Sharon - Hibiscus syriacus

General Information: 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.

Family: Malvaceae

Lighting: Part shade to full sun sun

Temperature: Zones 5B - 9A.

Watering: Adequate water to keep from drying out and remaining dry. Requires ample water to flower its best and to avoid leaf drop.

Feeding: General purpose fertilizer.

Pruning and wiring: Bark is thin and is easily damaged.

Propagation: Cuttings.

Repotting: 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.

Bibliography:
United States Department of Agriculture, Forest Service, Fact Sheet ST-295

Compiled by Thomas L. Zane