Thunbergia alata Sunny Susy Red-Orange ('Sumthun 02'PBR)
black-eyed Susan [Sunny Suzy Red-Orange]
A fast-growing, tender evergreen perennial climber, often grown as an annual, with green heart shaped leaves. Dark orange flowers with a red centres appear in summer and autumn
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Size
Ultimate height
1.5–2.5 metresTime to ultimate height
1 yearUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Orange Red | Green | ||
| Autumn | Orange Red | Green | ||
| Winter |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered Hardiness
H2Botanical details
- Family
- Acanthaceae
- Native to GB / Ireland
- No
- Foliage
- Evergreen
- Habit
- Climbing
- Genus
Thunbergia can be annuals or perennials, often twining climbers, with simple opposite leaves and trumpet-shaped or salver-shaped flowers borne singly in leaf axils, or in racemes, in summer
- Name status
Trade
How to grow
Cultivation
Grow in moist well drained soil in full sun with a support for the plant to climb. Dead-head regularly.
Propagation
Propagate by seed sown at 16-18°C (61-64°F) in spring, by softwood cuttings in early summer, or by layering
Suggested planting locations and garden types
- Cottage and informal garden
- Patio and container plants
- Flower borders and beds
- Climber and wall shrubs
Pruning
Minimal pruning required, see pruning group 11
Pests
May be susceptible to aphids, and to red spider mite and glasshouse whitefly under glass
Diseases
May be susceptible to powdery mildew
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