Golden Trumpet, Yellow Allamanda, Brown Bud Allamanda
Allamandacathartica 'Hendersonii'

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

Synonym:Allamanda cathartica var. hendersonii

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
4-6 ft. (1.2-1.8 m)

Spacing

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

Propagation Methods
From softwood cuttings
From hardwood cuttings

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