What is the common name for Thunbergia?
Thunbergia grandiflora, commonly called blue trumpet vine, clock vine, sky vine or sky flower, is a woody-stemmed, evergreen, tropical, twining climber. Thunbergia alata has a vine habit, and can grow to a height of 5 metres (16 ft) high in warmer zones, or much less as a container plant or as an annual. It has twining stems with heart or arrow-shaped leaves.Growing and Caring For Thunbergia It prefers full sun exposure to ensure optimal growth and abundant flowering. However, in hotter regions, it can benefit from some partial shade during the hottest parts of the day. The vine requires well-draining soil that is rich in organic matter.Thunbergia alata is a fast-growing, free-flowering vine. Black-eyed Susan vine is commonly grown in the Midwest as a season annual to provide color in a vertical setting.
Is Thunbergia annual or perennial?
In areas of no frost, Thunbergia vines will grow as a perennial. In colder climates, grow it as an annual, sowing the Thunbergia seeds each year. If grown in a container, Thunbergia Black Eyed Susan vine can be wintered indoors in a bright, sunny window. Description. Thunbergia grandiflora is a long-lived (perennial), vigorous, climbing plant that can grow up to 15 m in height when supported by a host tree. Younger stems are green, hairy (pubescent), and square in cross-section (quadrangular).Thunbergia thrives in warm and tropical climates, making it an excellent choice for gardens in those regions. It prefers full sun exposure to ensure optimal growth and abundant flowering. However, in hotter regions, it can benefit from some partial shade during the hottest parts of the day.Producing an abundance of flowers over several months, this fast-growing climber can be grown in a pot, hanging basket or sunny border. Strictly speaking Thunbergia alata ‘Susie Orange with Black Eye’ is a tender perennial, but if you want to overwinter it, you will need to do so in a warm conservatory or greenhouse.
Does Thunbergia come back every year?
Thunbergia are tender climbers and so plants growing outdoors will be killed off by the first frosts. Black-eyed Susan (Thunbergia alata) are usually grown as annuals so can be added to the compost heap at the end of the season. Thunbergia adds vibrant color and visual appeal to any garden space. Versatile growth allows it to thrive in containers, trellises, and hanging baskets. Attracts pollinators like bees and butterflies, enhancing garden biodiversity.
Where is the best place to plant Thunbergia?
Thunbergia alata grows best in rich, moist soil in full sun. It tolerates partial shade but flowering may be reduced. Seed can be sown directly where the plants are to be grown once soil temperature reaches 60F in the spring, but transplants give better results in the short growing season of the upper Midwest. Generally speaking, it will take one or two months to root and establish. Once this is done, you can plant your Thunbergia cutting(s) in the soil outside – remembering to select a position with full sun and well-draining soil.Thunbergia seeds will take a while to germinate, up to 25 days. Watering: Thunbergia does not tolerate drought well, so this is something to look out for especially in you are growing them in containers.