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Allamanda cathartica (Golden trumpet)

Beginner
skill rating
1 hour care
per year
12m
Max height
4m
Max spread
10-20 years
To maturity
Low
Toxicity

Plant details

Botanical name

Allamanda cathartica

Other names

Golden trumpet

Genus

Allamanda Allamanda

Species

A. cathartica - A. cathartica is a tender evergreen climbing shrub. It has green lance-shaped leaves and in summer to autumn, bears large yellow trumpet-shaped flowers.


Allamanda cathartica is: Evergreen

Habit

Climbing

Toxicity

May cause severe discomfort if ingested and is an irritant if contact is made with skin or eyes

Flower

Yellow in Summer; Yellow in Autumn

Foliage

Green in All seasons

How to care

Watch out for

Specific pests

Glasshouse whitefly , Red spider mite (box and other) Glasshouse whitefly , Red spider mite (box and other)

Diseases

Generally disease free

General care

Propagation methods

Seed, Softwood cuttings


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Where to grow

Allamanda cathartica (Golden trumpet) will reach a height of 12m and a spread of 4m after 10-20 years.

Suggested uses

Beds and borders, City, Conservatory, Containers, Greenhouse, Sub-Tropical

Cultivation

May be grown outdoors in a frost-free situation otherwise in a container overwintered indoors. Grow in fertile moisture-retentive, free draining soil in a sunny, sheltered position.

Soil type

Loamy, Sandy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Neutral

Light

Full Sun

Aspect

South, East, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Indoor heated (H1), Tender in frost (H3)

Companion plants

We do not currently have companion plants added for this plant.

Botanical name

Allamanda cathartica

Other names

Golden trumpet

Genus

Allamanda Allamanda

Species

A. cathartica - A. cathartica is a tender evergreen climbing shrub. It has green lance-shaped leaves and in summer to autumn, bears large yellow trumpet-shaped flowers.

Foliage

Evergreen

Habit

Climbing

Toxicity

May cause severe discomfort if ingested and is an irritant if contact is made with skin or eyes


Colour

Flower

Yellow in Summer; Yellow in Autumn

Foliage

Green in All seasons


How to care

Watch out for

Specific pests

Glasshouse whitefly , Red spider mite (box and other)

Diseases

Generally disease free

General care

Propagation methods

Seed, Softwood cuttings


Monthly care advice


Where to grow

Allamanda cathartica (Golden trumpet) will reach a height of 12m and a spread of 4m after 10-20 years.

Suggested uses

Beds and borders, City, Conservatory, Containers, Greenhouse, Sub-Tropical

Cultivation

May be grown outdoors in a frost-free situation otherwise in a container overwintered indoors. Grow in fertile moisture-retentive, free draining soil in a sunny, sheltered position.

Soil type

Loamy, Sandy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Neutral

Light

Full Sun

Aspect

South, East, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Indoor heated (H1), Tender in frost (H3)

Defra's Risk register #1

Plant name

Allamanda cathartica (Golden trumpet)

Common pest name

Scientific pest name

Spilostethus pandurus

Type

Insect

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

2

Impact (1 is very low - 5 is very high)

3

General biosecurity comments

Seed bug unlikely to pose a significant threat to UK plant health.

Defra's Risk register #2

Plant name

Allamanda cathartica (Golden trumpet)

Common pest name

Scientific pest name

Spilostethus hospes

Type

Insect

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

1

Impact (1 is very low - 5 is very high)

3

General biosecurity comments

Seed bug unlikely to pose a significant threat to UK plant health.

About this section

Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.

Traveling or importing plants? Please read "Don't risk it" advice here

Suspected outbreak? Click here for contact details to report to the relevant authority.

Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/

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This plant likes... Garden match
Soil types: Loamy, Sandy Tell us...
Soil drainage: Moist but well-drained, Well-drained Tell us...
Soil pH: Acid, Neutral Tell us...
Light: Full Sun Tell us...
Aspect: South, East, West Tell us...
Exposure: Sheltered Tell us...
Hardiness: Indoor heated (H1), Tender in frost (H3) Tell us...

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