Aloe Vera

Aloe vera

🪴 Indoor Seasonal Care

How this houseplant's needs shift through the year indoors.

💡 Wants a bright, sunny spot; overwatering, especially in winter, is the main risk.

At a Glance

Aloe vera is a resilient, rosette-forming succulent prized for its fleshy, gel-filled leaves, which are used topically for minor burns and skin irritations. Native to arid regions, it thrives indoors with minimal fuss, making it an excellent choice for UK homes seeking low-maintenance, drought-tolerant greenery. Its gel is safe for external use, but the plant itself requires careful handling to avoid ingestion risks.

Light

Aloe vera demands bright, direct light to maintain its compact shape and vibrant green colour, ideally from a south or west-facing windowsill. It tolerates some direct sun, but sudden exposure to intense midday sun can scorch leaves; always acclimatise new plants gradually by increasing sun exposure over 1–2 weeks. In UK homes, a sunny kitchen or conservatory window is perfect, though avoid placing it behind sheer curtains that diffuse light too much, as this encourages leggy growth and weakens the plant.

During winter months, when daylight is shorter, supplement with a grow light for 4–6 hours daily if natural light is insufficient. Never position it in low-light corners or north-facing rooms, as this leads to etiolation (stretching towards light) and increases susceptibility to overwatering. If leaves turn pale or yellow, it’s likely getting too much direct sun; move it slightly back from the window.

Watering

This succulent is a master of drought tolerance and requires watering only when the soil is completely dry. In UK homes, this typically means every 3–4 weeks in summer and every 4–6 weeks in winter, depending on light and indoor temperatures. Always check by inserting a finger 2–3cm into the compost; if it feels dry, water thoroughly until it drains from the pot’s base, then discard any excess water from the saucer. Overwatering is the most common cause of death for aloe, leading to root rot.

Use a free-draining cactus or succulent compost mix, never standard potting soil, as it retains too much moisture. Ensure the pot has drainage holes—terracotta is ideal for its porous nature. If you notice leaves becoming soft, mushy, or turning translucent, it’s a clear sign of overwatering; reduce frequency immediately and allow the soil to dry out fully before the next water.

Humidity and temperature

Aloe vera thrives in low humidity, making it perfectly suited to typical UK indoor environments, which are often drier than its native habitat. It tolerates average room temperatures (15–24°C) but dislikes cold drafts and temperatures below 10°C, which can cause leaf damage. Avoid placing it near radiators or heating vents, as the hot, dry air accelerates moisture loss and can dry out the leaves.

During winter, keep it away from cold windowsills where temperatures may drop significantly. It also benefits from occasional gentle misting in very dry central heating environments, though this is rarely necessary. If humidity is consistently high (e.g., in a bathroom without good airflow), increase light and reduce watering to prevent fungal issues.

Feeding and repotting

Feed sparingly with a balanced, water-soluble fertiliser diluted to half-strength during the active growing season (spring to early autumn), applying every 4–6 weeks. Do not feed in winter when growth slows. Overfeeding causes excessive leaf growth at the expense of the plant’s health and can lead to salt buildup in the soil.

Repot only when roots fill the current pot (typically every 2–3 years), using a pot just one size larger. Choose a terracotta or ceramic pot with drainage holes. The best time is early spring. Gently remove old soil from roots, discard any dead or rotten parts, and place in fresh succulent compost. Avoid repotting during winter or if the plant is stressed.

Propagation

The easiest and most reliable method is through offsets—small 'pups' that grow around the base of mature plants. Wait until they’re at least 10cm tall, then carefully separate them from the parent plant using a clean, sharp knife. Plant each pup in its own small pot with succulent compost, water lightly, and keep in bright, indirect light for a week before moving to a sunny spot. Leaf cuttings are possible but less successful; they often rot before rooting, so avoid this method for beginners.

For offsets, ensure the cut area is dry for 24 hours before potting to prevent infection. Place new plants in a warm, bright location but out of direct sun for the first few weeks. Rooting typically takes 4–6 weeks, and the new plants will grow slowly at first.

Common problems and how to fix them

Overwatering causes the most frequent issues, leading to yellow, mushy leaves and root rot. Fix by reducing watering frequency, checking soil moisture before watering, and repotting in fresh, dry compost if roots are damaged. Underwatering results in wrinkled, shrivelled leaves; simply water thoroughly but ensure the soil dries out fully between sessions.

Sunburn appears as brown, dry patches on leaves facing direct sun; move the plant to a spot with filtered light or use a sheer curtain to diffuse the sun. Pests like mealybugs or spider mites are rare indoors but can be treated with a cotton swab dipped in rubbing alcohol or a diluted insecticidal soap.

Is it toxic to cats and dogs?

Yes, aloe vera is toxic to both cats and dogs according to the ASPCA. The plant contains saponins and anthraquinones, which can cause vomiting, diarrhoea, lethargy, and in severe cases, tremors or changes in urine colour if ingested. The latex found just under the leaf skin is a strong laxative and should be kept away from children and pets.

Never allow pets or children to chew or eat any part of the plant, including the gel. If ingestion occurs, contact your veterinarian or the Animal PoisonLine immediately (01206 798223 in the UK). Keep the plant out of reach on high shelves or in rooms pets cannot access. While the gel is safe for topical use on human skin, it must never be consumed or applied to pets.