Blue Trumpet Vine Hanbat Arboretum Tropical Garden The grnus Thunbergia contains around 100 species, from shrubs to extremely ornamental vines. T. grandiflora is perhaps the best known of the latter, a very fast-growing shaped leaves and long, hanging clusters of either mauve-blue or white trumpet-shaped flowers. T. laurifolia has similar but smaller blooms and leaves that are narrow, smooth and..
