Golden Trumpet

Allamanda cathartica

Also known as: Allamanda hendersonii

Native to:
Bolivia, Brazil, French Guiana, Guam, Guyana, Palau, Suriname

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Apocynaceae
Genus:
Allamanda
Species:
Allamanda cathartica
USDA Symbol:
ALCA7

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Vine
Height:
600 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
may,jun,jul,aug,sep,oct,nov
Bloom Colors:
yellow, golden-yellow

Wildlife Benefits

Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)

Garden & Ecology Notes

Wildlife Value:
butterflies, hummingbirds
Deer Resistant:
Yes
Salt Tolerant:
Yes

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
consistently moist
Notes:
prefers fertile soils with good organic content

Propagation & Germination

Stratification:
None required
Germination Time:
14–30 days
Notes:
Seeds germinate readily in warm conditions (24-27°C). Fresh seed germinates better than stored seed.

The above propagation data sourced from Claude AI