Thunbergia alata, commonly called Black-eyed Susan vine, is a herbaceous perennial climbing plant species in the Acanthaceae family. It is native to Eastern Africa, and has been natrilized in other parts of the world, it is found in Cerrado vegetation of Brazil and Hawaii and is found in eastern Australia and the southern USA in the states of Texas and Florida. It is grown as an ornamental plant in gardens and in hanging baskets.
Soft five-petal blooms appear in late Spring/early Summer, mid Summer and again in late Summer, early Autumn (Fall). The leaves are heart shaped dicotyledons and the plant is an evergreen perennial. The plant is self-propagating but propagation methods for gardeners include herbaceous stem cuttings, and from seed. In the northern hemisphere seed is sown indoors before last frost and direct sowing after the last frost of the season.
To collect seeds, seedheads are allowed to dry on plants before removal and seed collection.
If you need height and colour on your patio and you have a couple of large pots to hand, there's still time to plant a mixture of climbers to cover an obelisk or wigwam this summer to provide you with a riot of colour.
Jun 16, 2010; If you need height and colour on your patio and you have a couple of large pots to hand, there's still time to plant a mixture of...