Hibiscus syriacus Malvaceae
Rose of Sharon, Shrub Althea hi-BIS-kus si-ri-A-kus
- Deciduous shrub/tree, 8-12 ft (2.4-4.5 m), upright vase. Leaves alternate, simple, 5-10 cm long 3-lobed and coarsely toothed, rounded teeth, three prominent veins; petiole 5-15 mm long. Many cultivars with flower color ranging from white to red to purple (5-10 cm across); flowers solitary, short stalked. Fruit, a 5-valved brown capsule, persists through winter.
- Full sun to part shade, grows in most soils, except those extremely wet or dry. Acid/alkaline adaptable. Prefers hot weather and does best in well-drained soils supplemented with organic material (e.g., peat moss). Valuable for late season flowers.
- Hardy to USDA Zone 5 Native to China, India.
- Oregon State Univ. campus: on either side of the entrance to Milam Auditorium