Althea, Hibiscus, Rose of Sharon

Althea/Hibiscus/Rose of Sharon

Hibiscus syriacus ‘Cultivar’

This plant has many names: Althea, Hibiscus, Rose of Sharon.
This plant has many names: Althea, Hibiscus, Rose of Sharon.

Features & Specs

Max Elevation: 7,500 ft.
Hardiness: Zone 5-8
Mature Height x Spread: 10′ x 5′
Shape: Large bush with upright branching.
Growth Rate: Slow
Foliage: Broad deep green leaves that are lobed. Fall color is not showy.
Bloom: Large, showy flowers in Summer that come in many different colors (generally lavender, pink, blue, white)


Specimen, Accent, Massing, Borders, Hedge, Screen.

Tolerates: Deer, Drought, Clay Soil
Municipality Use:

Planting & Maintenance

Sun: Full sun, tolerates light shade
Soil: Amend soil when planting
Water: All new plant material needs regular watering – see our Plant Care Guide. Once established will tolerate long periods of drought and require little supplemental watering
Special Considerations: Leaves do not push out until June in Colorado. This shrub will be one of the last plants in your yard to put leaves on in the spring.
Maintenance: Can be trained into a small tree or shaped as needed. Spring (May-June) is the best time to prune. Buds are set on new growth.

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Above information is brought to you by Silver Sage staff from personal experience and knowledge. This information is tailored specifically for growing conditions on the Front Range. Particular recommendations may vary depending on location and other planting situations.