Allamanda cathartica
Golden Trumpet

 Plant Type:
 Hardiness:
 Deciduous / Evergreen:
 Flowers:
Yellow (4-5" dia. yellow, trumpet-shaped flowers produced throughout the year)
 Foliage:
Green (Large, light-green, evergreen leaves are whorled)
 Fruit:
Brown (Not ornamentally important)
 Ultimate Height:
10-20 feet
 Ultimate Spread:
3-6 feet
 Light Requirements:
 Soil:
Adapts to a wide variety of soils
 Range:
Brazil
 Diagnostic Characteristics:
Leaves whorled, oblong-lanceolate, acute-acuminate, 4-6" long, mostly 1.5-2" wide; inflorescence of about 10 flowers; corolla tube 1.5" long (or more), the spreading lobes totaling 2.5" wide (or more), bright yellow; stamens very short.

Additional Information

Can be grown as a small shrub if pruned regularly. Quite tolerant of many soil types. Full sun needed for maximum flower show. All Allamandas are poisonous. Caterpillars and mites can be problematic. Not salt tolerant. 'Hendersonii' is most often planted, while 'Yellow Butterflies' is compact with many large yellow flowers.

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