Black Eyed Susan Vine Flower

Thunbergia alata, or black-eyed Susan vine, is a common garden and houseplant.

A native of Africa, the vine needs warm temperatures but also requires shelter from the hottest rays of the sun. Both stems and leaves are green and flowers are usually a deep yellow, white or orange with black centers. There are also red, salmon and ivory flowered varieties.

Black-eyed Susan is a fast growing vine that needs a vertical stand or trellis to support the plant. The vines twist around themselves and anchor the plant to vertical structures.

How to Care for Black Eyed Susan Vines

This plant has a few special needs that should be considered, so here are a few tips on how to care for black-eyed Susan vines.

Firstly, the plant requires well-drained soil. Note, it will tend to wilt if the soil gets too dry. The moisture level, especially for plants in pots, needs to be watched. Keep it moderately moist but never soggy.

Caring for a Black-eyed Susan vine outdoors is easy as long as you water moderately, give the plant a trellis and deadhead. Young plants will benefit from plant ties to help them establish on their growing structure.

Growing a black-eyed Susan vine indoors requires a bit more maintenance. Fertilize a potted plant once annually in the Spring with a water-soluble plant food. Provide a stake to grow up or plant in a hanging basket and let the vines droop down gracefully.

Watch for pests like whitefly, scale or mites and combat with horticultural soap or neem oil.