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A picture of a Bengal clock vine

Bengal clock vine

Thunbergia grandiflora

Also known as

Bengal trumpet, Blue trumpet vine, Clock vine, Sky vine, Skyflower

Full Sun
Moderate watering
Tender

11b

USDA zone

7°C

Minimum temperature

Expected size

Height
Spread

10m

Max

5m

Min

Flowering

  • spring
  • summer
  • autumn
  • winter

More images of Bengal clock vine

A photo of Bengal clock vine
A photo of Bengal clock vine

Bengal clock vine Overview

This is a quick-growing, vigorous evergreen climber, which will grow to about 9m high. The flowers are produced in drooping clusters of large, sky blue to deep violet, trumpet flowers which are borne in mid summer to mid autumn. The leaves are large, toothed, heart-shaped, and are about 20cm long.

Common problems with Bengal clock vine

How to propagate Bengal clock vine

Cuttings

You can propagate from seeds in spring and cuttings in summer.

Seed

Other uses of Bengal clock vine

Conservatory