Thunbergia alata, affectionately known as Black-eyed Susan, is a sun-loving climber native to East Africa.
This cheerful vine brings instant charm to balconies, patios, or garden trellises.
She owes her name to the striking flowers: bright orange, warm yellow, creamy white, or salmon-pink, always with that signature dark center – her "beautiful eyes." From May until late autumn, she continues blooming non-stop, as long as she has enough warmth, light, and nutrients.
Black-eyed Susan grows fast. Within weeks, she’ll climb 2 to 3 meters high using her slender twining stems. Perfect for greening up fences, trellises, or hanging baskets with support. Offer her something to climb – a trellis, bamboo pole, or wire will do.
She thrives in a sunny, sheltered spot or light shade. Water regularly in summer – don’t let her dry out. To extend flowering, we feed her weekly with liquid fertilizer for blooming plants.
In our climate, she’s usually grown as an annual, but with frost-free overwintering at +10ºC, she can be kept as a perennial. In winter, she often drops her leaves, but will regrow in spring. Light pruning is possible in early spring.
Hardiness zone 11 (+10ºC).