orange clock vine
Thunbergia gregorii
RHS AGM 2002
USDA zones10 to 11
SunNeeds full sun (6+ hours)
WaterHandles moderate to moist soil
Size8 to 10 feet tall
- Bloom season
- Spring, summer, autumn, winter
- Soil types
- Loam
- Soil pH
- Acid, alkaline, neutral
Garden uses
Notes
Orange clock vine (Thunbergia gregorii) is a vine for containers and low maintenance gardens. It grows outdoors year-round in USDA zone 10 and warmer, down to about 30°F (-1°C). In colder areas, grow it as a houseplant or bring it indoors for winter. This plant likes full sun and average to moist, loamy soil. It is evergreen and blooms in every season. Deer rarely make it their first choice. It reaches 94 to 122 inches tall, so give it a trellis to climb.
Pairs well with Cup and saucer vine, Blue daisy, and Button flower.
Native range
Africa.