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Plant care

Aloe vera (true aloe) care

Aloe barbadensis

Also called true aloe, medicinal aloe, burn plant.

RHS H1cUSDA 9-11Toxic to petsIndoor 30-60 cm tall and wide

Watering rhythm

2-3weeks

When the soil is completely dry, every 2-3 weeks

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Light

Direct sun (at least 4-6 hours)

Soil

Gritty cactus and succulent mix

Humidity

30-50%

Temp

15-27°C

Pet safety

Toxic to pets

Mature size

30-60 cm tall and wide

Care at a glance

Light

Aloe vera needs sun on the leaves, not just bright ambient room light. A south-facing window with several hours of direct sun. Leaves stretch and pale in low light. A south or west-facing windowsill in the northern hemisphere is the default; anywhere else, expect the plant to stretch and pale out within a season.

Watering

Water aloe vera when the soil is completely dry, every 2-3 weeks. Succulent-style plants store water in stem and leaf tissue — they'd rather be slightly thirsty than slightly soggy, and the most common way to kill one is to water it on a fixed weekly calendar instead of by feel. Water deeply, then ignore until the soil dries fully. Aloe leaves go translucent and mushy with too much water.

Soil and pot

Aloe vera grows best in gritty cactus and succulent mix. A coarse cactus mix or 50/50 potting compost and perlite. A terracotta pot helps wick excess moisture away. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Aloe vera sits happiest at around 30-50% humidity and 15-27°C (60-80°F). Average to dry household air is ideal. If you keep the room above 15 year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed aloe vera sparingly. Half-strength cactus feed every 8 weeks in spring and summer only. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on aloe vera in the Growli community. Where a problem matches one of our diagnostic guides, click through for the full step-by-step recovery plan written for aloe vera specifically.

  • Yellow leaves — Overwatering — let the pot dry out fully.
  • Drooping or splayed leaves — Either too little light or, more often, advanced root rot.
  • Mushy translucent leaves — Advanced rot; salvage healthy offsets and re-pot dry.
  • Reddish or purple leaves — Stress from cold, sun, or transplant — usually self-corrects.

Companion plants

Aloe vera pairs well with Jade plant, Snake plant, and Echeveria. These are species with similar light and water needs, so you can group them in the same room or on the same shelf and water as a batch.

Propagation

Separate pups (offsets) at repotting once each has 3-4 leaves and visible roots. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Aloe vera is toxic to pets. ASPCA lists Aloe vera as toxic to cats and dogs due to anthraquinones. Ingestion causes vomiting and diarrhoea. The latex layer just under the rind is more irritating than the inner gel. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Aloe vera care — frequently asked questions

What is the common name for Aloe barbadensis?

Aloe barbadensis is most commonly called Aloe vera, but it is also known as true aloe, medicinal aloe, burn plant. The names refer to the same species, so care instructions for Aloe vera apply identically to anything sold as true aloe.

How much light does aloe vera need?

Aloe vera grows best in direct sun (at least 4-6 hours). A south-facing window with several hours of direct sun. Leaves stretch and pale in low light.

How often should I water aloe vera?

Water aloe vera when the soil is completely dry, every 2-3 weeks. Water deeply, then ignore until the soil dries fully. Aloe leaves go translucent and mushy with too much water. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.

Is aloe vera toxic to cats and dogs?

Aloe vera is toxic to pets. ASPCA lists Aloe vera as toxic to cats and dogs due to anthraquinones. Ingestion causes vomiting and diarrhoea. The latex layer just under the rind is more irritating than the inner gel.

What USDA hardiness zone does aloe vera grow in?

Aloe vera is rated for USDA zone 9-11 and RHS hardiness H1c. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Aloe vera deep-dive guides

Every aspect of aloe vera care, each with its own calibrated guide:

Featured in these plant shortlists

Aloe vera qualifies for 4 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Aloe vera is also known as true aloe, medicinal aloe, and burn plant.