About

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.

About the 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

Growing conditions

SunlightFull sun
Soil typeChalk, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectSouth-facing, West-facing
ExposureSheltered
UK hardinessH2

Plant details

Plant typeClimber Wall Shrub
HabitClimbing
FoliageEvergreen
Height1.5-2.5 metres
Spread0.5-1 metres
Time to full height1 year
Suggested usesCottage and informal garden, Patio and container plants

Care notes

CultivationGrow in moist well drained soil in full sun with a support for the plant to climb. Dead-head regularly.
PruningMinimal pruning required, see pruning group 11
PropagationPropagate by seed sown at 16-18°C (61-64°F) in spring, by softwood cuttings in early summer, or by layering
Pest resistanceMay be susceptible to aphids, and to red spider mite and glasshouse whitefly under glass
Disease resistanceMay be susceptible to powdery mildew