© RHS / Janet Cubey



Common name: Black-eyed Susan

These vigorous, climbing annuals, with colourful flowers, are excellent for giving quick cover to arches and fences while you are waiting for longer-term plants to mature. Alternatively, allow them to cascade down from large hanging baskets. They cannot withstand frost.


From summer to autumn, vigorous, twining stems carry 5-petalled trumpet flowers, in glowing shades of orange, yellow, red or creamy white. They open flat and often reveal dark chocolate-purple centres.


They like any fertile soil that drains easily in full sun. In hanging baskets, use good quality compost with added perlite or vermiculite for good drainage.


Growth will be poor on very dry or wet soils. Plants will not flower in shade.

Did you know?

Besides the annuals, thunbergias also include some shrubs and evergreen climbers suitable for conservatories.

Growing guide

Thunbergia we recommend

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Useful advice

Climbers: using annuals

Climbers: using annuals

Containers: summer selection

Containers: summer selection

Hanging baskets

Hanging baskets



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