Allamanda williamsii growing shrub of the genus Allamanda also known as Allamanda cathartica williamsii, Allamanda williamsii perennial evergreen can grow as annual, used as ornamental fragrant plant, can grow in tropics mediterranean, subtropics or temperate climate 9+ as perennial and 7+ as annual.
Leaves color green in elliptic shape the leaves grow on whorls.
Allamanda williamsii flower
Flower color yellow, in trumpet-bell shape with five outer petals and five inner petals, the inner petals little shredded in the edge, the flowers grow in cluster.
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How to grow Allamanda williamsii growing and care:
Frost free, well drain, rich soil, trellising (for the vine)
What is the best way to start growing?
Plant / Seed / Vegetative Reproduction
Is it necessary to graft or use vegetative reproduction?
Difficulties or problems when growing:
Invasive (some cultivars)
Spring (as annual), spring, summer autumn (as perennial)
Pests and diseases:
Aphids, meal bug, mites
When is the best time to prune?
Autumn / Winter
How to prune:
Just for design
Size of the plant?
1-6 m – 3-18 feet
Growth speed in optimal condition:
Average amount of water / Big amount of water
Light conditions in optimal condition for growing:
Full Sun / Half Shade
Is it possible to grow indoor as houseplant?
Growing is also possible in a planter /flowerpot / containers:
Summer / Autumn
General information about the flower:
Trumpet-bell shape with five outer petals and five inner petals, the inner petals little shredded in the edge, the flowers grow in cluster, flower color yellow