African sumac (Searsia lancea)

African sumac

Also known as: Karee, Black Karee, Karoo tree

Searsia lancea is a highly drought tolerant shade tree native to Africa. It can withstand hot and cold temperatures and will tolerate heavy pruning. This evergreen tree can be planted as a windshield or hedge.

Scientific classification

Species

African sumac (Searsia lancea)

Maples, mangos, mahogany, citrus, and allies

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Perennial

Lifespan

Tree

Plant Type

Mid spring, Late spring

Bloom Time

Fall

Harvest Time

8 m

Plant Height

5 m

Spread

Green

Leaf Color

2.5 cm

Flower Size

Evergreen

Leaf type

20 - 38 ℃

Ideal Temperature

Images of African sumac

Distribution of African sumac

Distribution Map

African sumac is indigenous to Southern Africa, where it thrives in varied biomes across the region's subtropical and warm temperate zones. Beyond its native range, african sumac has been introduced to parts of South Asia, where it has established a presence. Not only does it occur naturally, but african sumac is also cultivated in various locales within and possibly beyond these primary regions.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Gardens, parks, pavements

Hemisphere Trend Curve

Northern

Sorthern

Culture

Garden Use

African sumac is primarily used as a shade tree in coastal gardens. It is also grown to serve as a windbreak. The tree’s resistance to drought makes it a favorite in arid gardens, and it requires little care over its lifespan. Its attractive foliage and fragrant clusters of tiny flowers in the spring add to its garden appeal.

Symbolism

Energy of the wild

Interesting Facts

Searsia lancea is easily distinguished by its remarkable bark. The bark of african sumac is very rough and has many deep, irregular fissures. It's dark or almost black sometimes. It's been reported that the bark of african sumac has antibacterial properties.

Name Story

African sumac: 'Sumac' is the common name for the shrubs of the Rhus genus. This French name was probably derived from the Assyrian word 'Sumaq', meaning 'red', and it refers to the red flower spikes of the Rhus species. However, Searsia lancea doesn't belong to the Rhus genus, but it's called african sumac in North America where has been naturalized.

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Toxicity

Though african sumac is not directly harmful to humans, some people have airborne allergies to the pollen produced by male flowers, leading to symptoms like sneezing, itchy eyes, and difficulty breathing. Allergies to african sumac pollen are typically seasonal and occur during desert winters. If symptoms appear near african sumac, an allergy may be present.

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Care Guide for African sumac

Every 1-2 weeks

Water

Full sun

Sunlight

20 - 38 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: African sumac is drought-tolerant, requiring minimal moisture with a watering frequency of once every 1-2 weeks. Best suited for outdoor cultivation and xeriscaping, it thrives in arid environments, emphasizing water conservation while promoting healthy growth.

Fertilize: For african sumac, use high-nitrogen fertilizer monthly during spring and early summer to support foliage growth, reducing frequency in winter. Apply evenly at the base and water thoroughly to enhance absorption. Novices should follow label directions, while experienced gardeners may adjust based on plant response.

Pruning: Prune african sumac in early to late winter post-flowering to maintain health and shape. Remove dead or crossing branches for airflow and structure. Thinning reduces pests and improves light penetration. Regular pruning enhances growth and appearance; use sharp, sterilized tools to avoid disease.

Propagation: African sumac propagates via cutting and layering in Spring, with moderate difficulty. Successful propagation is indicated by new leaf growth and root development, requiring proper moisture levels for optimal results.

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Images of African sumac

Distribution of African sumac

Culture

Toxicity

Care Guide for African sumac

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