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Arid Zone Trees All of our plants meet or exceed the minimum requirements of the American Standard for Nursery Stock (ANSI Z60.1)

Acacia tortilis

Umbrella Thorn

Foliage: Evergreen

Mature Height: 15’ - 60’

Mature Width: 15’ - 40’

Growth Rate: Slow

Hardiness: 18 degrees F

Exposure: Full Sun

Leaf Color: Green

Shade: Dense

Flower Color:  White to Cream

Flower Shape: Ball

Flower Season: Spring

Thorns: Yes

Propagation Method: Seed

Sizes Available: #25


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Acacia tortilis PDF


Photo courtesy of Richard Bond

San Diego Wild Animal Park

Acacia tortilis (Umbrella Thorn) is a slow growing evergreen medium to large tree from lower elevations in dry regions of Africa. The smaller trees have a rounded canopy while the larger trees have the flat top seen on film production from these regions.  The bark is a grey to dark brown fissured with straight and hooked thorns two to three inches long at times. The two types of thorns and an interesting twisted or cork screw seed pod make this tree easy to identify. The ball shaped flower is white to cream and sometimes a pale yellow.

Disclaimer: The information provided here was gathered from research literature published by the University of Arizona, other professional Landscape and Horticultural organizations and our experience at Arid Zone Trees. Always consult local landscape experts for recommendation for your specific area.

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