Allamanda cathartica

PlantFile Report Copyright © 2000 - 2025 Peter Kirkland - www.plantfile.com Plant Profile
Plant
ID 309 Allamanda cathartica
Botanic Name Allamanda cathartica
Common Name Golden Trumpet Vine
Family Name Apocynaceae
Cultivars 'Cherry Ripe', 'Cherries Jubilee', 'Compacta', 'Dwarf Discovery', 'Hendersonii', 'Schottii', 'Sunee', 'Williamsii','Winter Velvet', syn. Allamanda schottii, Allamanda neriifolia
Origin Tropical America, Zone 11-12
Growth Type Climber
Bark Type Woody
Foliage Type Evergreen Water Use Medium
No. of Species 12
Growth Habit Climbing-twining Growth Rate Fast
Height 2 - 3.5 m (7 - 12 ft) Spread 2 m (7 ft)
Plant Overview
This perennial twiner has purplish woody stem that requires support or it may form a low shrubby habit. It has leathery glossy green oblong leaves and the golden yellow trumpet-shape flowers appear in a cluster throughout summer.
Leaf
Type Simple Additional Information
Shape Obovate
The 150 mm (6 in) long leathery textured glossy green leaves are obovate to oblanceolate and are arranged in whorls of four. The apex is acuminate and the texture is leathery with undulating margins.
Arrangement Whorled
Margin Entire
Colour Glossy green
Size 100 - 150 mm ( 3.9 - 5.9 in )
Flower
Perfume Odorless Additional Information
Shape Funnelform
The large funnelform flowers have 5 expending golden yellow lobes and the throat is marked with reddish strips. There are 3 or more flowers arranged in axillary or terminal cyme that appears profusely over the plant from early summer to autumn.
Inflorescence Cyme
Colour Yellow
Size 75 - 150 mm ( 3.0 - 5.9 in )
Flowering in
(Southern Hemisphere)
Jan Feb Mar Apr May Jun
Jul Aug Sep Oct Nov Dec
Fruit
Type Capsule Additional Information
Colour Brown
The large globose capsule is spiny and contained numerous seeds that are viable but the plant is commonly reproduced vegetatively.
Edible No
Bird Attractive No
Size 15 - 20 mm ( 0.6 - 0.8 in )
Fruiting in
(Southern Hemisphere)
Jan Feb Mar Apr May Jun
Jul Aug Sep Oct Nov Dec
Environment & Cultivation
Natural Soil Well drained, clay-sandy loam, moist organic rich, tending acidic, pH 5.0- 6.5
Container Tubs, planter boxes, under glass in frost prone climates
Climate Tropical
Aspect Full sun to semi shade, moist open position, frost and drought tender
Pest & Diseases No major pest or disease problem
Fertiliser Added organic matter to soil, apply complete liquid fertiliser fortnightly to potted plants
Pruning Directional pruning when young during early spring or tip prune to form a hedge
Cultural Uses Propagation
The Golden Trumpet Vine is grown for its large flowers and dense foliage. It is grown over a pergola for shade or along fences for screening and used for colour in tropical gardens. It is also grown as a prostrate shrub.
Take nodal cuttings during late spring and semi hard wood from summer to autumn and place in a deep well drained soil with added cow manure.
© 2025 PlantFileonline. All Rights Reserved.
Designed and Developed by Tatvasoft Australia