Allamanda Species, Common Trumpetvine, Brown Bud Allamanda, Golden Trumpet, Yellow Allamanda
Allamandacathartica

Family: Apocynaceae (a-pos-ih-NAY-see-ee)
Genus: Allamanda (al-uh-MAN-da)
Species: cathartica (kat-AR-tik-uh)

Category
Vines and Climbers

Water Requirements
Requires consistently moist soil; do not let dry out between waterings

Sun Exposure
Sun to Partial Shade

Foliage
Evergreen
Shiny/Glossy

Foliage Color

Height
10-12 ft. (3-3.6 m)

Spacing
4-6 ft. (1.2-1.8 m)

Hardiness
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)

Where to Grow

Danger
All parts of plant are poisonous if ingested

Bloom Color
Bright Yellow

Bloom Characteristics

Bloom Size

Bloom Time
Mid Summer
Late Summer/Early Fall

Other details

Soil pH requirements
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)

Patent Information
Non-patented

Propagation Methods
From softwood cuttings
From hardwood cuttings

Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds