Sunset®: 24-27
USDA: 10-12
Frost Tolerance: Prefers frost free areas, treat as a bougainvillea. Foliage hardy to to 30°F ( -1°C), but will weaken and probably die if kept too cold for a long period of time
Heat Tolerance: Not adapted to the low desert climates
Sun Exposure: Light shade
Origin: Brazil
Growth Habits: Evergreen shrub to vine (var. hendersoni), up to 15 feet tall (4.5 m)
Flowers: Yellow flowers
Watering Needs: Prefers regular to generous watering during hot conditions. Moderate drought tolerance. Requires a relatively humid air.
Propagation: Cuttings in late spring.
Propagation: Cutting or occasionally division
- by softwood stem tip cuttings, in spring. Use intermittent mist.
Allamandas are used throughout the tropics as ornamentals. They are easy to grow, in warm conditions. You can plant anytime if you water abundantly. Feed liberally with a balanced fertilizer. All parts of the plant are toxic, and the milky sap can irritate the skin.
The genus name is coming from the 18th century Swiss doctor, Frédéric-Louis Allamand.
Allamanda neriifolia has similar leaves and has flowers with a reddish throat. It is a shrub.
- Jamaican Sunset: light pink to light purple, probably an hybrid
- Stansill's Double, Flore Pleno: with double flowers, 10 petals
Blooming Habits:
Up to 6 inches in diameter (15 cm), trumpet shaped, single or double, yellow flowers in summer.
Culture:
Feed heavily during the growing season. Prune in spring.
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