About
A fast-growing, tender perennial climber, often grown as an annual, reaching up to 2m high, with heart-shaped, slightly hairy green leaves. Bright yellow flowers with a dark brown centres are produced from mid to late summer.
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, Partial shade
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained
AspectEast-facing, South-facing, West-facing
ExposureSheltered
UK hardinessH2
Plant details
Plant typeClimber Wall Shrub
HabitClimbing
FoliageEvergreen
Height1.5-2.5 metres
Spread1-1.5 metres
Time to full height1 year
Suggested usesCity and courtyard gardens, Cottage and informal garden, Patio and container plants
Care notes
CultivationThrives in fertile, moist but well-drained soil, in full light with shade from hot sun. Provide support for climbing stems. Plants are not frost tolerant; overwinter in a conservatory or greenhouse
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 mildews