Golden Trumpet

Allamanda cathartica

Yellow Allamanda, Common Trumpetvine, Allamanda

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Originating in the jungles of Brazil, Allamanda, widely known as Golden Trumpet is propagated from stem cuttings. As a vine and a shrub, it flourishes in warm and moist climates. Growing thickly, it gets covered in yellow bell-shaped flowers, making it a lovely option for a hedge screen​. Be cautious when growing or handling Allamanda, as they secrete a white sap when damaged, which can be harmful. This vigorous tropical vine is a popular conservatory plant, producing clusters of striking yellow flowers contrasting with shiny dark green leaves.
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Planning

Difficulty

Easy

Flowering time

Spring, Summer

Fruiting time

Autumn

Harvesting

As a prolific flowering vine and shrub, the flowers can be picked throughout spring and summer, but they do not last long.

Propagation

Cuttings

Plant cuttings in Spring or Summer. Dig a 50 mm hole and insert a stem cutting which should have 2 or more buds on it in the hole and at least two buds for new leaves above soil level.

Special features

Hedge plant

Allamanda is fast, tall growing plant with bright flowers and can be trained up a trellis or pruned to stay a certain height.

Attractive flowers

Crop rotation

Allamanda is a medium feeder. Feed with a good blooming plant food in spring through summer every two to three weeks to encourage good growth and flowers .

Special features

Origin

South and Central America, Brazil

Natural climate

Warm, moist climate

Environment

Light

Full Sun

Soil moisture

Moist

Soil type

Loam, Sand

Soil PH preference

Neutral

Frost hardiness

Tender

Uses

Ornamental

Best grown as an indoor plant in the UK. It may be grown outside in wall side borders or pots of subtropical patio/courtyards providing it is frost free.

Notes

Ornamental

Personality

Family

Apocynaceae

Flower colour

Yellow

Scent

None

Problems

Allamanda may be bothered by spider mites and whiteflies. Spray the plant with a strong burst of water to remove the pests and follow with daily applications of horticultural soap or a Neem spray.
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Knowledge and advice

Search our ever-growing knowledge base to find plants and information. Find out about pests and diseases you should be keeping an eye out for. Watch How to videos or follow step by step guides for tasks in the garden. Free download for your phone or tablet.
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