species
Thunbergia alata
Black-eyed Susan vine
Scale drawing from this record, beside a 1.7 m figure.
Thunbergia alata is a annual in the family Acanthaceae, also known as Black-eyed Susan vine, introduced to the UK. It reaches 2 m tall and 50 cm across in about 10 years. It grows in full sun, on loam soil, where the ground is acid or neutral and in moist or well drained conditions, and suits sheltered positions. It flowers from June to September. Its RHS hardiness rating is H2 (tender): 1 to 5°C.
Assembled from the attributes recorded below.
What this plant needs
- Size at maturity
- 2 m tall × 50 cm across, after about 10 years
- Hardiness
- H2 (RHS)
- Lifecycle
- Annual
- Aspect
- Full sun
- Soil
- Loam
- Acidity
- Acid, Neutral
- Moisture
- Moist, Well drained
- Exposure
- Sheltered
- In the UK
- Introduced
When it flowers
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
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