Alocasia Care Guide

The Ultimate Alocasia Care Guide

Alocasias are not for the faint-hearted — and that's exactly why we love them. With their bold, architectural leaves and unmistakable presence, these plants demand attention and reward dedication. They're the high-maintenance member of the aroid family, but get the conditions right and they'll produce growth that genuinely takes your breath away.

Light

Alocasias need bright, indirect light — and plenty of it. This is non-negotiable. Too little light and they'll sulk, drop leaves, and slowly decline. Too much direct sun and those stunning leaves will scorch. Think bright, filtered light from a south or east-facing window, or a spot close to a window with a sheer curtain. In the UK's darker months, a grow light can make a real difference.

Watering

This is where most people go wrong. Alocasias like consistently moist (not wet) soil — they don't want to dry out completely, but they absolutely cannot sit in waterlogged compost. Water when the top inch of soil is dry, water thoroughly, and ensure excess drains freely. In winter, ease right back — the plant slows down significantly and overwatering in cold months is a fast track to root rot.

Humidity & Temperature

High humidity is essential — aim for 60–80% if you can manage it. Alocasias are native to tropical rainforests and they want you to remember that. A humidifier nearby is the most effective solution; misting is largely cosmetic. Keep temperatures consistently above 18°C and away from cold draughts — a chill can trigger dormancy or leaf drop almost overnight.

Soil & Potting

Well-draining is the key phrase here. A chunky aroid mix — potting soil, perlite, and orchid bark — will give roots the air circulation they need while retaining just enough moisture. Avoid dense, peat-heavy mixes that hold water. Repot in spring, going up only one pot size at a time — too much soil around the roots increases the risk of overwatering.

Feeding

Feed every 2–4 weeks during the growing season with a balanced liquid fertiliser. Alocasias are hungry plants when they're actively growing. Stop feeding in autumn and don't resume until you see new growth emerging in spring.

Dormancy

Here's something many new Alocasia owners don't expect: these plants can go dormant in winter, especially in lower light or cooler conditions. Leaves may yellow and drop — this is not necessarily death. Keep the soil barely moist, maintain warmth, and wait. New growth will emerge when conditions improve.

Common Issues

Yellow leaves: Overwatering, poor drainage, or cold stress. Brown leaf edges: Low humidity or inconsistent watering. Drooping leaves: Underwatering, cold shock, or repotting stress. Leaf drop in winter: Likely dormancy — don't panic, don't overwater.

Alocasias are a commitment, but they're one of the most visually spectacular plants you can grow indoors. Earn their trust and they'll become the centrepiece of your collection.