Canary flora > Exotic and ornamental
Thumbergia grandiflora
Thumbergia grandiflora Roxb.
Blue Trumpet Vine, Clock Vine, Sky Vine, Blue Skyflower
Evergreen, woody climbing plant with voluble stems that can exceed 10 m
in length, the youngest being angular and slightly pubescent.
It produces very dense foliage, with simple, deep green, opposite leaves, about 5-10 cm long and 3-6 cm wide, with pubescent petiole and ovate-lanceolate to heart-shaped blade, cordate at the base, with sinuous, toothed or lobed margin, acuminate apex, palmate veins, and rough to the touch.
It produces very dense foliage, with simple, deep green, opposite leaves, about 5-10 cm long and 3-6 cm wide, with pubescent petiole and ovate-lanceolate to heart-shaped blade, cordate at the base, with sinuous, toothed or lobed margin, acuminate apex, palmate veins, and rough to the touch.
The flowers are usually grouped in hanging clusters up to 10 cm long.
They have a calyx reduced to a ring, without teeth, and a corolla up to
6-7 cm in diameter, in the shape of a conical tube at the base, which
widens rapidly to form a very open bell made up of five petals, two of
which are more erect, two more flattened and one longer than the others,
whitish in the lower half, turning sky blue in the other half, with a
yellowish interior, and with bluish lines in the throat.
The fruits are globular, glabrous or pubescent capsules, up to 13 mm in diameter, ending in a conical tip, containing numerous seeds, which are thrown several metres away when the ripe capsule bursts open.
The fruits are globular, glabrous or pubescent capsules, up to 13 mm in diameter, ending in a conical tip, containing numerous seeds, which are thrown several metres away when the ripe capsule bursts open.
Its dense and spectacular flowering occurs during the summer and autumn
months.
Reproduction can be by seed, by cuttings, or by fragments of its tuberous roots.
This species is native to India, southern China, Thailand and Cambodia. It is now also established in many parts of South America, Central America and the Caribbean.
Reproduction can be by seed, by cuttings, or by fragments of its tuberous roots.
This species is native to India, southern China, Thailand and Cambodia. It is now also established in many parts of South America, Central America and the Caribbean.
