Aristaloe aristata

South African and Lesotho habitats

Aristaloe aristata is native to South Africa and Lesotho, growing from dry Karoo country to mountain grassland and river valleys. You may also see it labelled Aloe aristata, an older botanical name.

The species is still widespread across most of this area. Some local populations have disappeared. Wild collecting may be one cause, and the effect of harvesting for traditional use is still unclear.

Caring for a dense Aristaloe aristata clump

• Light: A bright position with direct sun keeps the rosettes dense. Very bright filtered light can also work where direct sun is limited.
• Water: Water the pot thoroughly after the mix has dried through. Dense clumps can shade the soil surface, so give the whole mix time to dry fully before the next soak.
• Temperature: The species can tolerate brief temperatures around 1–5°C. For an indoor container plant, keep it frost-free and wait longer before watering when the room is cool.
• Humidity and airflow: Average room humidity is suitable. Give a dense clump enough space for air to move around the leaves so splashed water at the bases dries quickly.
• Potting: Use a gritty cactus or succulent compost with strong drainage. Use a wider pot as the clump spreads.
• Feeding: Feed about once a month with a dilute balanced fertiliser when new growth is visible.
• Repotting: Repot once offsets fill the pot edge or the roots become crowded. Individual offsets can be separated with roots attached if a smaller plant is preferred.

Changes to watch across an Aristaloe aristata clump

• Rosettes become tall and open: The plant needs more light for compact growth. Move it into brighter light gradually; fresh growth should form in a tighter rosette.
• The centre of an old clump stays damp and lower leaves soften: Crowding and slow drying are trapping moisture. Remove any loose, dead lower leaves, improve airflow and repot into fresh gritty mix if the potting mix around the roots stays wet.
• Leaves wrinkle across the whole clump and the pot is dry: The clump needs water. Water thoroughly and allow the container to drain.
• Shell-like bumps or white waxy clusters appear: Scale or mealybugs may be present. Move the clump away from nearby plants and clear pests from the leaf joints. Treat for scale or mealybugs and follow the directions on the product label.

Aristaloe aristata is toxic to people and pets

• Keep this plant away from children, cats and dogs, and handle the leaf tips carefully.
• The leaf latex contains anthraquinone glycosides that can irritate skin and the digestive tract. Rigid tips and toothed margins can also scratch or puncture.
• Swallowing the latex may cause an upset stomach, while skin contact can cause irritation. Contact a veterinarian or medical professional if symptoms develop.

Where does the name Aristaloe aristata come from?

Both Aristaloe and the epithet aristata draw on Latin arista, meaning awn or bristle.

James Stephen Boatwright and John Charles Manning established the genus Aristaloe in 2014 in Systematic Botany, volume 39, page 69.

Adrian Hardy Haworth first described it as Aloe aristata in 1825 in Philosophical Magazine and Journal, volume 67, page 280. James Stephen Boatwright and John Charles Manning later placed it in Aristaloe as Aristaloe aristata in 2014 in Systematic Botany, volume 39, page 69.