Aloe vera: complete care guide and medicinal uses

Aloe vera ticks more boxes than almost any houseplant: easy to grow, beautiful, and its gel works on minor burns and sunburns. Here is how to give it what it needs and harvest its gel without harming it.

Where it comes from

Aloe vera (Aloe barbadensis miller) is native to the Arabian Peninsula. It is a succulentSucculentA plant that stores water in its leaves, stems, or roots. Very forgiving when you forget to water. that grows in rocky soils under intense sun. Like all succulents, it stores water in its fleshy leaves, which lets it last months without water.

Family: Asphodelaceae. Slow growth: about half an inch per month at peak.

Light: maximum

Rule number one. Full sun or very bright indirect light. A south or west window, or a balcony in summer. Without enough light:

• Leaves stretch upward.
• The plant loses its compact rosette shape.
• The gel becomes less concentrated.

If you start with a garden-center plant (often raised in limited light), acclimate it to full sun gradually over 2 weeks to avoid leaf sunburn.

Watering: little and well

Every 3-4 weeks on average. More in summer, much less in winter (sometimes 6 weeks).

Method:

1. Confirm the substrateSubstrateMix the roots grow in (potting soil, perlite, sand, bark). It supports the plant and controls drainage. is dry 2 inches deep.
2. Soak the pot for 15 minutes OR water until liquid drains out the bottom.
3. Drain fully, never leave water in the saucer.
4. Wait until dry before next watering.

Thirst signs: leaves slightly soft or curling at the edges. Drowning signs: yellow soft or translucent leaves, mushy base.

Substrate: ultra-draining

Cactus mix from the store + 20% extra perlite. OR DIY recipe:

• 30% green-plant potting mix
• 30% perlite
• 30% horticultural sand
• 10% fine pumice

Water should run through in seconds. If it pools, the mix is too dense.

Pot: terracotta with drainage hole

Terracotta is ideal for aloe vera: it lets roots breathe and speeds up substrate drying. Pot just an inch wider than the root ball. Drainage hole required.

Fertilizer: very little

Once in spring, once in summer, with half-diluted cactus fertilizer. That is all. Too much burns the roots and makes the plant grow too fast (stretched).

Harvesting the gel

Once the plant is at least 2-3 years old (rosette of at least 12 inches), you can harvest leaves.

How:

1. Pick a thick, smooth, mature outer leaf.
2. Cut at the base with a clean knife.
3. Stand the leaf upright in a glass for 15 minutes: a yellow liquid (aloin) drains. It is skin-irritating, let it run out.
4. Slit the leaf lengthwise.
5. Scoop out the clear gel with a spoon.

Immediate uses:

• Minor kitchen burns.
• Light sunburns.
• Itching after insect bites.
• Dry hair (as a mask, mixed with olive oil).

Caution: do not ingest raw gel. The aloin (yellow) is a strong laxative and can be toxic. Edible aloe vera sold in stores is processed to remove aloin.

Storing the gel

Fresh: 1 week in the fridge in an airtight jar.

Frozen: 6 months in cubes (perfect to apply directly on sunburns).

Mixed with oil: 1 month max.

Propagating aloe vera

Easiest method: pups. A mature aloe vera produces babies at its base.

1. Take the mother plant out of its pot.
2. Identify pups with their own roots.
3. Separate gently by hand or with a knife.
4. Let the cuts callusCallusA small protective tissue that forms at the base of a cutting after a few days. Normal step before the first roots appear. for 2-3 days.
5. Replant each pup in its own pot with dry substrate.
6. Do not water for 1 week (let cuts dry).

You get 3-5 new plants per division.

Common problems

Symptom	Cause	Fix
Soft, yellow leaves	Overwatering	Stop watering, check roots
Brown leaf tips	Low light OR hard water	Full sun, filtered water
Stretching leaves	Lack of light	Gradually move into full sun
No growth	Pot too small OR not enough light	Repot, relocate
Black spots	Temperature shock	Keep above 60°F

Toxicity

Aloe vera is toxic to cats and dogs if ingested. The pure gel is safe on human skin, but aloin irritates. Place high if pets are around.

With Plenova

Plenova tells you when your aloe vera is ready to give a pup, be pruned, or repotted. Watering reminders match its succulent nature: very spaced, always season-aware.

A settled aloe vera lives 25 years. It is probably the best effort-to-reward ratio in the houseplant world.