Botanical Name: Thevetia thevetioides
Common Name: Giant thevetia, Rough leaf yellow oleander
Type of Plant: Dicot: large shrub
Character evergreen or small tree
 
Habit of Growth:
Overall Shape a fast-growing rangy shrub, with a slender multi-stemmed open habit; forms a loose rounded canopy if unpruned - easily trained into a small tree
Height 10' - 15'
Spread equal
Growth Rate rapid
 
Environment:
Exposure outdoors prefers full sun, warm sites in coastal plain area
Soil best in well-draining locations - tolerates most
Hardiness (zones 12-13, 21-24): tender - avoid shaded locations
 
Morphology:
Leaves pinnate, narrowly elliptic to nearly linear, alternate to nearly whorled; upper surface corrugated; dark green, 3"-4" long
Flowers bright yellow, funnel-shaped, 3"-4" across, in showy or terminal clusters; summer and fall months
Fruit a peach-sized drupe, green; poisonous
 
Propagation:
seed
 
Usage:
a small accent tree in tropical-theme or warm climate gardens, for its showy display of flowers; also as a loose background or screen material
 
Landscape Care:
Watering prefers frequent deep-soaking; can tolerate drought
Fertilizing little needed after establishment
Pruning as a tree - head high and develop open framework
Pests/Diseases relatively free
Special Conditions/Other all parts of plant mildly poisonous
 
Origin: Equador
Family: Apocynaceae

Notes:
 
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