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Troubleshooting · Alocasia

Why Is My Alocasia Curling?

Curling leaves are a stress response. The cause is almost always one of three things: light, water, or pests.

Quick answer

Curling inward = thirst or heat stress. Curling downward at the tips = overwatering. Spotty curling with stippling = spider mites.

What\u2019s normal for Alocasia

  • Light: Bright indirect / dappled
  • Water: Keep moist, never soggy

Pulled from the full Alocasia care guide — every spec cited from primary horticultural sources.

Three things to check, in order

Cause 1

Underwatering or heat stress

Plants curl leaves to reduce surface area when stressed by heat or drought. Common near sunny windows in summer or hot AC zones in winter.

Fix: Move away from direct heat source. Water thoroughly, let drain, resume normal schedule.

Cause 2

Spider mites

UC IPM data: spider mite damage causes stippled, dusty appearance and curling. Look for fine webbing on leaf undersides.

Fix: Rinse plant in shower with room-temp water. Follow with insecticidal soap spray every 3–4 days for 2 weeks.

Source: UC IPM

Cause 3

Low humidity

Tropical species (calathea, prayer plant, anthurium) curl when relative humidity drops below 40%. Common in heated winter rooms.

Fix: Run a cool-mist humidifier near the plant. Pebble trays help marginally; humidifiers help a lot.