Thunbergia alata ‘Superstar Orange’ or Black-eyed Susan is part of the Acanthaceae family of plants. This herbaceous perennial is native to East Africa, a vigorous climber with very bright orange flowers, however, in most climates it is treated as an annual. They are beautiful in borders or hanging baskets.
Thunbergia alata ‘Superstar Orange’ vine can grow up to 8ft or 2.4m. It usually flowers between June and October and you will get more flowers in the sun unless if you are in a very hot place make sure to shelter them from the strong sun at least in the afternoons. As they are climbers they will need some sort of support. They are easy and do not require deadheading of flowers to keep blooming.
How to grow Thunbergia alata ‘Superstar Orange’:
Plant Thunbergia alata ‘Superstar Orange’ in moist but well-drained soil. Grow it in the sun or partial shade. Propagate from seeds soak the seeds in water for a day before sowing. Watch out for whiteflies and spider mites especially if you keep them indoors. Otherwise, Thunbergia alata ‘Superstar Orange’ is disease-free.