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Orange jessamine

Cestrum aurantiacum

Also called Orange-flowering jessamine, Orange Cestrum, Yellow Cestrum, Warszewicz Cestrum

Orange jessamine
Photo: Stan Shebs, CC BY-SA 3.0

Orange jessamine is a fast-growing evergreen shrub from tropical Central and South America, valued for its fragrant orange-yellow tubular flowers. It grows best in well-drained, humus-rich soil with sun or partial shade, and pruning keeps its size in check.

Family
Solanaceae (Nightshade family)
Grows as
Shrub
Light
Full sun, Part shade
Water
Water regularly while establishing, then let the soil dry between waterings; it tolerates drought once mature.
Soil
Well-drained, humus-rich soil or a loamy potting mix.
Temperature
15–30 °C; top is hardy to about zone 8 and roots to about zone 7, so protect from frost.
How easy
Easy
Safety
Toxic: All parts are poisonous if eaten, especially the leaves and berries, causing gastrointestinal upset and potentially more serious effects.
Native range
Mexico to Venezuela
Climate
wet tropical

About

Cestrum aurantiacum (orange cestrum, "orange jessamine", orange-flowering jessamine, and yellow cestrum; syn. Capraria lanceolata L.f.) is a species of shrub in the potato family Solanaceae that is native to tropical regions of North and South America.

How to grow it

This plant is used as an ornamental plant, and it is a poisonous plant if eaten by animals. However, the species is widely grown as an ornamental plant and in some places it has escaped from cultivation and returned to the wild. In parts of Africa, Asia and Australia, the species has become a harmful invasive species. The top of the plant is hardy to zone 8 but it is root hardy to zone 7.

Drought tolerant, the species grows best in occasionally moist, humus-rich, well-drained soil in full sun or partial shade. The size of the shrub is easily controlled by pruning. It is regarded as medicinal in Peru. The flowers attract hummingbirds, butterflies, and other pollinating insects.

Where it grows

This species is distributed in an area extending from southern Mexico to Nicaragua, where it is found in moist thickets or forests, often in pine-oak forests at altitudes between 1000 and 2600 m.

Other Cestrum plants

Day jessamine · Purple cestrum · Night jessamine · Chilean jessamine · Jessamine

Text excerpted from the Wikipedia article Cestrum aurantiacum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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