47 in stock

    • 45 $


Quick Overview


seed is often hard to obtain, but when seed is available it is easy to germinate and the plants grow rapidly. should be planted in the late spring or early summer when the soil has become very warm. The seeds can be soaked for 24 hours before planting to hasten germination. Seeds should be planted 6 inches apart. s make great container plants. Three plants to a 10 inch pot is optimum.

Type Spacing Planting Depth Days to Germination Blossoms
Annual 8-10 in. 1/2 in. 14-21 45-60


Thunbergia is native to Madagascar, parts of Africa and Asia. Linnaeus named the plant after Peter Carl Thunberg, a Swedish botanist who lived from the mid 1700s to the early 1800s. Thunbergias were grown in American gardens beginning in the 1700s. Joseph Breck in his book, Breck’s Book of Flowers, written in 1830, but not published until 1851, describes three Thunbergias – a perennial, buff-colored thunbergia, an annual white-flowered thunbergia and the orange-yellow flower that is most prevalent today. This vine which can grow to 20 feet in a single season was often grown as a greenhouse plant in 19th century America and England.

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