Aloe Vera

Season note

Water every 2–3 weeks in summer, every 4–6 weeks in winter — always let soil dry out completely first.

Overwatering signs

Soft, mushy, or translucent leaves; black spots; root rot

Underwatering signs

Wrinkled, thin, curling leaves

Light level

bright direct to indirect

Best rooms

Soil

Fast-draining cactus/succulent mix

Humidity

Low; does not need extra humidity

Fertilizer

Half-strength liquid fertilizer monthly, spring–summer only

Temperature range

13°C – 27°C

Aloe vera has a long history of cultivation, so its precise original wild distribution is difficult to establish with certainty. It is generally associated with the Arabian Peninsula, especially Oman and Yemen, while the broader Aloe genus is concentrated mainly in Africa and nearby regions. Because people have cultivated and transported Aloe vera for centuries, it is now grown and naturalized far beyond its presumed native range. What is well documented is Aloe vera's extraordinarily long history of human use. Documented traditions of Aloe vera use date to classical times, and historical evidence documents long-standing cultivation and trade, although early sources do not always identify Aloe vera unambiguously; because historical sources do not always distinguish Aloe vera from related aloes, exact early species identifications should be treated cautiously. Human trade and cultivation subsequently spread Aloe vera widely, including to the Americas, Asia, and parts of southern Europe, so modern populations are now distributed far beyond its presumed native range. Today it's naturalized across huge stretches of the Mediterranean basin, North Africa, and the Canary, Cape Verde, and Madeira Islands, though most of these naturalized populations are believed to descend from long-ago human cultivation rather than truly wild, ancestral stands.

Botanically, Aloe vera belongs to the family Asphodelaceae (the same family as daylilies) and is a stemless or very short-stemmed succulent, storing water in its thick, fleshy, gel-filled leaves, an adaptation clearly suited to its arid points of origin. The genus name Aloe derives from the Arabic word alloeh, meaning "bitter and shiny substance," a fitting reference to the plant's sap. Two distinct substances are harvested from the leaves commercially: a clear, translucent inner gel, widely used in topical products for burns, minor wounds, and skin irritation, and a separate yellow latex found just beneath the outer leaf skin, historically dried into a resin and used, though far less commonly today, as a laxative — this latex is chemically and functionally quite different from the soothing inner gel and is generally regarded with more caution.