Mountain aloe is a large, single-stemmed succulent tree-like aloe from southern Africa, reaching up to 6 metres, with big grey-green spiny leaves and horizontal, orange flower spikes in winter. The key to growing it is full sun, excellent drainage and very little water.
Family
Asphodelaceae (Aloe family)
Grows as
Succulent
Light
Full sun
Water
Water deeply but infrequently, letting the soil dry out fully between waterings, and water less in winter.
Soil
Fast-draining cactus or succulent mix, or sandy loam with grit.
Temperature
18–35 °C; protect below 5 °C
How easy
Easy
Safety
Toxic: Latex (sap) in the leaves can irritate the skin and cause stomach upset if swallowed; the sap is a laxative.
Native range
SE. Botswana to KwaZulu-Natal
Climate
desert or dry shrubland
About
Aloe marlothii (also known as the mountain aloe or the flat-flowered aloe) is a large, single-stemmed Southern African aloe of rocky places and open flat country, occasionally growing up to 6 metres (20 ft) tall.
Where it grows
Its distribution ranges from the Klipriviersberg Nature Reserve in Johannesburg, through eastern Botswana, northwards over the Soutpansberg to Zimbabwe and Malawi and eastwards through Eswatini and Mozambique to the coast. Within this range, it is especially common in mountainous areas, which led it to be known as the mountain aloe.
Text excerpted from the Wikipedia article Aloe marlothii 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.