Also known as Alamanda · Allamanda · Bush Allamanda
Safety note: This plant may be toxic to humans and pets. See toxicity details.
Golden Trumpet (Allamanda cathartica) is a tropical vine or shrub celebrated for its large, trumpet-shaped yellow flowers and lush green foliage.
At-a-glance light, water, soil, and growing conditions from plant data
High
100% intensity
Prefers full sun for abundant flowering, but tolerates partial shade.
Moderate to high
75% intensity
Keep soil consistently moist during growth, reduce in winter.
Well-drained soil
50% intensity
Moderate to high
75% intensity
Thrives in warm temperatures (18-27°C); avoid frost and temperatures below 10°C.
Moderate
50% intensity
Feed during growing season with balanced liquid fertilizer.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | Yes 4/5 intensity |
| Toxic for pets | Yes 4/5 intensity |
| Edible | No |
Mildly toxic if ingested
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Keep the soil consistently moist but not waterlogged during the growing season. Reduce watering in winter, allowing the top few centimeters of soil to dry out between waterings.
Ensure good drainage to prevent root rot, especially in containers.
Prune to maintain shape and encourage bushier growth. After flowering, trim back long stems to about one-third of their length.
This also helps prevent the plant from becoming leggy and promotes more blooms in the next season.
Easily propagated from stem cuttings taken in spring or summer. Cuttings should be 10-15 cm long, with lower leaves removed.
Plant in a moist, well-draining potting mix and keep in a warm, humid environment until roots form.
Repot young plants annually in spring. Mature plants can be repotted every 2-3 years, or when root-bound. Use a well-draining potting mix, such as a blend of peat, perlite, and compost.
Choose a pot slightly larger than the previous one.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Golden Trumpet (Allamanda cathartica)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Gentianales |
| Family | Apocynaceae |
| Genus | Allamanda |
| Species | Allamanda cathartica |
Similar in genus Allamanda
Answers based on plant encyclopedia data
