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Trees

Arabic Name

سنط كارو

Latin Name

Acacia karroo , Mimosaceae

English Name

Sweet Thorn

Endemic to southern Africa, A. karroo has been selected from the exotic acacias as having potential for planting in Arriyadh. Typically a shrub, it will grow into a medium-sized tree under good conditions and grows rapidly with regular water. Variable in shape and size, it has a rounded crown, branching from the lower part of the trunk. The bark has deep fissures and is red on young branches. Fragrant, yellow flowers, opening in clustered heads in late spring. Narrow seed pods are flat, straight or curved. A. karroo is a pioneer tree with an ability to fix nitrogen, but it is relatively short-lived (up to 40 years). The tree is deciduous in cold areas and prone to frost damage. It has a long taproot, but its roots are invasive; planting near paving/foundations should be avoided. Propagation is by seed soaked in hot water and left overnight; young trees are best fertilised with compost and bonemeal. A. karroo grows in most free-draining soil types, in full sun or partial shade. Drought-tolerant, the root zone should be deep-watered every one to two months during the summer. A beautiful patio-sized tree for the garden, its bright yellow flowers against dark green foliage and reddish-brown bark are highly attractive. Useful for erosion control, as a windbreak, thorny informal hedge, or barrier. Maintenance includes careful training of the leader, gradual removal of side branches until all are above head height, so that the long thorns are no problem, and also spring pruning of dead wood. The tree is prone to attack by mealybugs.

General information

Family Name : Mimosaceae
Origin: Tropical , Sub Tropical
Rainfall: Very Arid
Propagation: Sowing and Pricking Out
Maintenance: Low

Environmental conditions

Urban Climate: Resistant
Desiccation: Resistant
Drought: Vulnerable
Irrigation: Low
Salinity: Moderate < 3,000 ppm
Hardiness Zones: 0°C

Plant shape

Vigour: Fast Growing
Height: From 4 To 15 M
Expansion: From 6 To 15 M
Foliage: Semi Evergreen

Flower

Colour: Yellow Bright
Size: From 1 To 2 CM
Flowering Period: From Early April Till Late May
Smell: Flower , Pleasantly Scented

Fruit

Type Of Fruit: Pod
Size: From 4 To 10 CM

Location of Use :

Public Open Space , Cars Park , Street Neighbour Planting , Open Country , Rock Garden , Hillside Planting , Container Planting , Hillside Stabilization , Park Planting , Roof Garden , Grove Planting , High Hedge , Specimen , Tree Grille , Urban Area

Other choices :

Attractive Foliage , Plant Used by ADA , Attractive to Birds , Invasive Roots , Pollen Allergy , Good Scent , Attractive Flower , Screen , Fruit Drop , Shelter , Medium Hedge , Attractive Shape , Dominant Plant , Colonisers

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