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Sideroxylon spinosum
Argan is a thorny, slow-growing tree from the dry semi-desert of southwestern Morocco and nearby North Africa, valued for its oil-rich nuts. It is grown mainly for its drought tolerance and ecological role, and it needs full sun and very well-drained soil.
Sideroxylon spinosum, known as argan (Tashelhit: ⴰⵔⴳⴰⵏ, romanized: argan), synonym Argania spinosa, is a species of flowering plant. It is a tree native to the calcareous semi-desert Sous, Chiadma and Haha regions of Morocco, as well as some parts of Tindouf Province in southwestern Algeria, and also to Mauritania and Western Sahara.
Argan trees grow to 8–10 m (26–33 ft) high and live up to approximately 200 years. They are thorny, with gnarled trunks and wide spreading crown. The crown has a circumference of up to 70 m (230 ft) and the branches may lean towards the ground.
The argan tree used to grow throughout North Africa, but today it only grows in southwestern Morocco. Argan is perfectly adapted to the region's harsh environment, with the ability to survive extreme heat (over 50 °C), drought and poor soil. Although numbers are dwindling, argan is the second most abundant tree in Moroccan forests, with over twenty million trees living in the region and playing a vital role in the food chain and environment. The tree's roots grow deep into the ground in search of water, which helps bind soil and prevents erosion. Much of the region has resisted the advance of the Sahara desert due to the argan tree, and it therefore plays an irreplaceable part in the ecological balance of the region.
In Morocco, arganeraie forests now only cover some 8,280 km2 (3,200 sq mi) and are designated as a UNESCO biosphere reserve. Their area has shrunk by about half during the last 100 years, due to charcoal making, grazing, increasingly intensive cultivation and the expansion of urban and rural settlements.
There are many types of Argan habitats, with varying degrees of aridity based on latitude and distance from the Atlantic Ocean :
The argan tree has played a role in the cultures of the Berber people living there for hundreds of years. Argan is a multi-purpose tree and each part of it is usable as a food or economic resource. The fruit can be eaten, oil can be extracted from the nuts and the tree's wood can be used for fuel. The tree has therefore played a vital socio-economic role in local culture, and currently provides a significant source of food and income for around three million people, over two million of whom live in rural areas.
Text excerpted from the Wikipedia article Sideroxylon spinosum 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.
