What is Thunbergia?
Thunbergia is a family of vines in the family acanthaceae . Several species are widely grown for their flowers. They are grown as perennials in tropical areas or as annuals in colder climate. The most commonly grown species is Thunbergia alata, black-eye Susan vine. These flowering plants can grow rapidly to a length of 8 ft (2.4 m) and generally have 1 IN (2.5 cm) orange flowers with dark centers, along with 3 inch (7.5 cm) leaves in the shape of arrows or hearts.
Susan is also the name of the plant Rudbeckia . Thunbergia Black-Eyed Susan Vine is commonly known for its orange flowers, but there are other cultivars with flowers in color from red to bright yellow to white. Plants are often grown on alto or grids on which they grow twining. Alternatively, they are also grown in hanging baskets. If the night temperature ABOVE is 60 F (15.6 ° C), they will bloom all year round. More likely to produce rich flowers if they are grown in the soil that dGiant drained and damp. Plants bloom from the end of spring to autumn.
plants can start from seeds or cuttings, but are usually more intense when they start from the seeds. They will be self -cleaning in a warmer climate. The seeds can be planted inside or outdoors, but some of the gardeners recommend starting inside. Generally, germination lasts 10 to 21 days if they are grown in warm, humid soil. Young Susan seedlings with blacks grow rapidly to become full -size plants.
Another species of Thunbergia, which is popular as a gardening plant, is Thunbergia Grandiflora , also known as Clock vine or Sky Flower. This twining vine is also of tropical origin and is grown as permanent in warmer areas and as a greenhouse plant in colder areas. Clockide has 2.5 to 3V (6.3 to 7.5 cm) tubular, bright blue or purple flowers with 8 inches (20 cm) leaves in the shape of SRDce. This type of Thunbergia prefers a certain shadow in the summer in tropical climate.
CLOCKVINE takes a year to happen, and then grows rapidly if in wet soil. The plant can be aggressive and quickly covers a grid or fence. Thunbergia Grandiflora can grow to greater than 20 ft (6 m) long. The vines may require pruning to maintain it within limits, especially in climate, such as Hawaii. If it is frozen, it may take a year to recover.