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Acanthaceae
Bengal Clock Vine
Thunbergia grandiflora
Tropical patience and time made visible.
- Family
- Acanthaceae
- Genus
- Thunbergia
- Native to
- India, Bangladesh, Indochina
- Bloom season
- Summer, Fall
- Type
- evergreen woody vine
- Height
- 6–10 m
- Sunlight
- full sun to part shade
- Soil
- fertile, well-drained
- Water
- medium
- Hardiness
- 9–11
- Lifespan
- long-lived perennial
Did you know
- Its cascading blue trumpet flowers can blanket a fence so completely the leaves disappear.
- Each flower has five overlapping petal lobes resembling a wide-open clock face — hence the common name.
- Charles Darwin studied related Thunbergia vines for his work on the movements of climbing plants.
- It is invasive in northern Australia and Hawaii, where it can swallow whole rainforest canopies.
- Unlike its smaller cousin black-eyed Susan vine, this is a long-lived woody perennial in the tropics.
Color meanings
Blue
calm reverie
Lavender
tropical romance
White
clear-headed peace