Botanical Name: Hibiscus syriacus 'Red Heart'
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Common Name: Olseau Blue Rose-of-Sharon  
Plant photo of: Hibiscus syriacus 'Red Heart'
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Water Saving Tip:

Apply as little fertilizer as possible.

If you use fertilizer make sure it stays on the landscape, and carefully water it in so there is NO runoff.

  • Anatomy

  • Culture

  • Design

Plant Type

Shrub

 

Height Range

6-12'

 

Flower Color

Red, White

 

Flower Season

Summer

 

Leaf Color

Green, Dark Green

 

Bark Color

Brown, Grey

 

Fruit Color

Brown

 

Fruit Season

Summer

Sun

Full, Half

 

Water

Medium

 

Growth Rate

Moderate

 

Soil Type

Sandy, Clay, Loam, Rocky, Unparticular

 

Soil Condition

Average, Rich, Poor, Well-drained, Moist

 

Soil pH

Neutral, Basic

 

Adverse Factors

n/a

Design Styles

English Cottage, Meadow, Mediterranean, Ranch, Spanish

 

Accenting Features

Showy Flowers

 

Seasonal Interest

Summer

 

Location Uses

Background, Shrub Border, Foundation, Patio, Walls / Fences

 

Special Uses

Hedge, Screen, Small Spaces

 

Attracts Wildlife

n/a

Information by: Stephanie Duer
Photographer:

  • Description

  • Notes

Rose-of-Sharon is a deciduous shrub with an upright, dense form in its youth, becoming more open and spreading with age. 'Red Heart' has large, single-petaled white flowers with a red eye. Foliage is bright green and unevenly serrated. Rose-of-Sharon makes an excellent addition to the shrub border, or as a hedge or screen. Moderate grower to 10 feet tall and 6 feet wide.
Rose of Sharon prefers full sun but will grow and flower with half day sun. Requires well drained soil, and grows better in poorer soils than those that are very loamy. Is sometimes available as a standard, meaning that it has been pruned to be in tree form; will require pruning to maintain tree form. Otherwise, prune selectively to control size and form; see Guides.