- Species and varieties: Thunbergia alata, commonly known as Black-eyed Susan vine, is a species of flowering plant in the Acanthaceae family. The white variety is a cultivar of this species, known for its striking white flowers with a dark center.
- Hybrid or heirloom: The white Thunbergia alata is typically an heirloom variety, meaning it is open-pollinated and has been passed down through generations without genetic modification.
- Pruning and training: Regular pruning is necessary to encourage bushier growth and more prolific flowering. Pinch back the tips of the vines to promote branching. Training the vines on a trellis or support structure will help manage their growth and display the flowers attractively.
- Fertilization needs: Thunbergia alata benefits from a balanced, water-soluble fertilizer applied every 4-6 weeks during the growing season. Avoid over-fertilizing, as this can lead to excessive foliage growth at the expense of flowers.
- Hardiness zones: Thunbergia alata is suitable for USDA hardiness zones 10-11. In cooler climates, it is often grown as an annual or in containers that can be brought indoors during colder months.
- Climate requirements: This plant thrives in warm, sunny climates with temperatures ranging from 60°F to 80°F. It prefers full sun to partial shade and requires well-drained soil with moderate moisture.