Buddleja asiatica is a somewhat tender deciduous shrub native to a vast area of the East Indies, including India, Nepal, Bangladesh, China, Taiwan, Burma, Thailand, Laos, Cambodia, Vietnam, Malaysia, New Guinea, and the Philippines, growing in open woodland at elevations < 2,800 m either as understorey scrub, or as a small tree.

The sweetly scented flowers are usually white, occasionally pale violet, and borne in late winter at the ends of the long, lax branches in slender panicles, the size of which can vary widely according to source.

[6] Buddleja asiatica is not completely hardy in the UK, but can be grown reliably against a south-facing wall in coastal areas of the south and west, where it tolerates temperatures down to around 0 °C (32 °F).

A specimen is grown under glass by Longstock Park Nursery, near Stockbridge, Hampshire, one of the four NCCPG national collection holders.

[1] Owing to its wide ecological range, adaptation to disturbed areas, elevation and rainfall tolerance, it readily naturalizes in tropical regions and can become invasive.