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Hibiscus syriacus 'Red Heart'
  • RHS AGM

rose of Sharon 'Red Heart'

'Red Heart' is a medium-sized deciduous shrub of upright habit, with lobed dark green leaves. Flowers single, to 10cm in width, pure white with conspicuous deep red centres, from late summer

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Size
Ultimate height
1.5–2.5 metres
Time to ultimate height
10–20 years
Ultimate spread
1.5–2.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Red White Green
Autumn Red White Green
Winter
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Sheltered
Hardiness
H5
Botanical details
Family
Malvaceae
Native to the UK
No
Foliage
Deciduous
Habit
Bushy
Genus

Hibiscus can be deciduous or evergreen shrubs, trees, annuals or perennials, with simple or palmately lobed leaves and large, funnel-shaped flowers over a long flowering season

Name status

Accepted

How to grow

Cultivation

Grow in a moist but well-drained soil in a sheltered position in full sun

Propagation

Propagate by semi-hardwood cuttings

Suggested planting locations and garden types
  • City and courtyard gardens
  • Wall side borders
Pruning

Pruning group 1

Pests

Generally pest free

Diseases

Powdery mildews may be a problem

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