Scientific Name
Hibiscus syriacus
Common Name
Rose-of-sharon; Shrub althea

Hardiness Zones: 5 to 8
Habit: Deciduous
Growth Rate: Moderate to rapid
Site Requirements: Sun to partial shade; prefers moist, well-drained soil
Height: 8 to 10 feet
Width: 6 to 10 feet
Texture: Medium
Form: Erect small tree or shrub; numerous upright branches
Flower/Fruit: 2 to 4" flowers with crepe-like petals; red, white, violet, purple, two-toned; single or double; last for one day; occurs summer to fall
Foliage: Alternate, simple medium to dark green leaves; 2 to 4" long; coarsely toothed; modest yellow fall color
Comments: Drought and air pollution tolerant; late to leaf out in spring; prefers hot weather; spring pruning will increase flower size; flowers on new growth
Cultivars: See table
   

 

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