Aloe vera care guide

The most common aloe mistake

Aloe vera is one of the most purchased houseplants in the world and also one of the most commonly killed. The two reasons usually go together: people put it somewhere dim because it seems tough, and then water it on a regular schedule. Aloe is a desert plant. It wants the brightest window in your home and wants to dry out completely between waterings.

The "I killed my aloe" experience is almost always overwatering in insufficient light. Fix the window first, then adjust watering, and aloe becomes genuinely easy.

Which window aloe vera actually needs

South window (ideal)

A south-facing window gives aloe the most direct sunlight available indoors. In its native habitat, aloe grows in open desert under full sun. A south window is the closest indoor equivalent. Plants in south windows grow faster, produce thicker healthier leaves, and are far more likely to offset (produce pups). This is the window to aim for.

West window (excellent)

Afternoon sun through a west window is intense and suits aloe well. Growth is slightly slower than in a south window but still vigorous. The main limitation is that west windows get no sun in the morning, so the daily light total is lower than south. Both windows produce healthy, robust aloe plants.

East window (acceptable)

Morning sun is gentler and the total daily light is lower than south or west. Aloe survives in east windows but grows slowly and the leaves can become thinner and more elongated as the plant reaches for more light. If an east window is your brightest option, place the aloe as close to the glass as possible.

North window (not suitable)

North-facing light is too dim for aloe vera. The plant will survive for months on stored water in its leaves, slowly weakening, before eventually collapsing. If a north window is your only option, a grow light placed close to the plant is necessary.

How to water aloe vera

The rule is simple: water thoroughly, then do not water again until the soil has dried out completely. Completely means all the way to the bottom of the pot, not just the top inch.

In summer near a bright south or west window, complete drying takes about 2 to 3 weeks. In winter, when the plant is dormant and light levels are lower, the same volume of soil can take 4 to 6 weeks to dry. Some aloe growers water as little as once a month in winter and the plant is fine.

When you do water, water until it drains freely from the bottom of the pot. This flushes the soil and ensures roots at the bottom get moisture. Then ignore the plant until the soil is dry again.

The main signs of overwatering vs. underwatering:

• Overwatered: Leaves turn brown and mushy at the base. The plant feels soft or flabby. The base smells musty. The soil stays wet for weeks.
• Underwatered: Leaves pucker, wrinkle, or feel less firm than usual. Tips may dry and brown. The plant looks slightly deflated.

Underwatered aloe recovers within days of a thorough watering. Overwatered aloe with rotted roots is much harder to save.

Soil and pot type

Aloe needs fast-draining soil. Standard indoor potting mix retains too much moisture and almost guarantees root rot over time. Use:

• Cactus and succulent mix from a garden center. This is the easiest option and widely available.
• Regular potting mix cut with perlite or coarse sand, roughly 50/50 by volume. Perlite is available at most garden centers.

Pot material also matters. Terracotta pots are ideal because they're porous and allow the soil to dry faster through the sides. Plastic or glazed ceramic pots retain moisture longer. If you use a plastic pot, water even less frequently.

The pot must have drainage holes. Aloe in a pot without drainage will eventually rot regardless of how carefully you water.

Why yours is turning red, brown, or mushy

Reddish or orange leaves: This is sunstress, not damage. When aloe gets more sun than usual, it produces pigments as a kind of sunscreen. Slight reddening is normal and harmless. Severe bleaching or papery brown patches in the center of leaves indicate actual sunscald from very intense direct sun through glass, which can happen in a very hot south window in midsummer. Moving the plant back a foot or adding a sheer curtain fixes it.

Brown mushy leaves at the base: Root rot from overwatering. The outer leaves turn yellow, then brown, then collapse. Check the roots: healthy roots are white or tan; rotted roots are brown or black and mushy. Remove the rotted roots with clean scissors, let the plant air-dry for a day or two, then repot in dry cactus mix. Don't water again for at least 2 weeks.

Dry, crispy brown tips: Usually underwatering, or mineral buildup from tap water. Give the plant a deep watering and consider switching to filtered water.

Floppy or drooping leaves: Overwatering. The plant loses structural integrity when roots can't absorb water properly.

Pups and propagation

Healthy aloe plants regularly produce offsets called pups. These are small plants growing from the base, attached to the mother plant's root system. Pups can be left on to create a fuller plant, or separated and potted individually.

To separate a pup, wait until it's at least 2 to 3 inches tall. Slide the whole plant out of its pot. Trace the pup's roots back to where they connect to the mother plant and cut cleanly. Let the cut end callous over for a day, then pot the pup in dry cactus mix. Don't water for a week while it establishes roots.

Aloe varieties worth knowing

Pets and aloe

Despite being a useful first-aid plant for humans, aloe vera is toxic to cats and dogs. The outer rind of the leaf contains anthraquinone glycosides that cause vomiting, diarrhea, lethargy, and in severe cases, tremors. Keep aloe out of reach, or choose a different plant if you have pets that chew on plants. Spider plants and calatheas are non-toxic alternatives that are similarly low-maintenance.

Frequently asked questions