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Orange cestrum

How to identify Orange cestrum (Cestrum aurantiacum)

Orange cestrum, also known as Orange jessamine, Night-blooming Jasmine, Orange Zest

Orange cestrum is a robust evergreen shrub with vine-like qualities, reaching up to 8' (2.4 m) in optimal conditions. It exhibits vibrant orange tubular blossoms that bloom in the late spring to early fall period. Post-flowering, these give way to white berries. Its foliage is capable of sustaining partial to full sunlight exposure, and requires moderate hydration. Visually striking, orange cestrum is known for its frost resilience down to the mid 20s F (-3 to -4°C) and is a magnet for butterflies and hummingbirds.

Lifespan

Lifespan: Perennial

Plant Type

Plant Type: Tree, Vine, Shrub

Leaf Type

Leaf Type: Evergreen

Quickly Identify Orange cestrum

1

Vibrant orange tubular flowers in 4-inch clusters, emitting citrus fragrance at night.

2

Shiny, light green leaves with a wet dog odor when crushed, oval to lance-shaped.

3

Petite, globular white berries in clusters, smooth surface, diameter of 0.4 inches (1 cm).

Orange cestrumOrange cestrumOrange cestrumOrange cestrumOrange cestrum

Detailed Traits of Orange cestrum

Leaf Features

The leaves of orange cestrum are light green and shiny, measuring up to 6 inches (15 cm) in length and 2.75 inches (7 cm) in width. They are broadly oval to lance-shaped with an entire margin. The leaf apex is acute or has a distinct drip tip. When crushed, the leaves emit a distinctive odor reminiscent of a wet dog. They are alternately arranged and possess a smooth, glossy texture which is crucial for identification.

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Flower Features

In late spring or summer, orange cestrum produces 4-inch (10 cm) clusters of vibrant orange or yellow tubular flowers, each 1 inch (2.5 cm) long. The flowers have 5-6 small, round lobes and are arranged at branch tips and leaf axils. They emit a citrus fragrance at night. These blooms appear almost year-round.

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Fruit Features

The fruit of orange cestrum manifests as petite, globular berries with a diameter of roughly 0.4 inches (1 cm). Upon maturity in the summer season, each berry exhibits a distinctive palette of pale gray to white hues. Their surface texture is smooth, encapsulating the soft, fleshy interior characterized by these berries. Typically found in clusters, these fruits are a rarity in regions outside of tropical climates. While the berries may tempt observers with their ornamental appearance, it is important to handle them with care.

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Key Facts About Orange cestrum

Attributes of Orange cestrum
Lifespan
Perennial
Plant Type
Tree, Vine, Shrub
Plant Height
1.8 m to 2.5 m
Spread
1.2 m to 1.5 m
Leaf Color
Green
Stem Color
Green
Orange
Leaf type
Evergreen
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Scientific Classification of Orange cestrum

Species
Orange cestrum (Cestrum aurantiacum)
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Distribution Map of Orange cestrum

Orange cestrum is native to certain regions in Central and South America. Outside of its native range, it has been introduced to other parts of the world, particularly on various continents including Asia, Africa, and Oceania. In some areas, orange cestrum is cultivated and may occasionally be thought to have an impact on local ecosystems, especially in one known location in Africa. Cultivation practices suggest that orange cestrum has varying levels of acceptance across different regions.
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
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