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Thunbergia grandiflora
Thunbergia grandiflora
 

Thunbergia grandiflora


Thunbergia grandiflora is an evergreen vine in the family Acanthaceae. It is native to China, India, Nepal, Indochina and Burma and widely naturalised elsewhere. Common names include Bengal clockvine, Bengal trumpet, blue skyflower, blue thunbergia, blue trumpetvine, clockvine, skyflower and skyvine.

Plants may grow to about 20 metres in height and have a tuberous root system with a deep tap root. The stalked, opposite leaves, which have a rough surface, are quite variable in shape. They may be triangular or ovate and the margins may be toothed, lobed or entire. Length is up to 20 cm and width is up to 6 cm. The mauve flowers are about 8 cm across with a 4 cm long tube that is pale yellow inside. These are followed by pods containing seeds that are ejected several metres upon ripening. Plants also reproduce from segments that are washed down watercourses (in tropical climates)

With a minimum temperature of 10–13 °C (50–55 °F), this plant is cultivated as a houseplant in temperate regions, and has gained the      RHS's  Award of Garden Merit
newly-rooted young plants available for a short period now


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