Alocasia Winter Dormancy: Tuber Check and Rest Period

Your Alocasia losing all leaves in Mediterranean winter: check the tuber. Firm, potato-like = dormant (normal for some varieties/short days). Black/mushy = rot (overwatering, fungus, or herbicide).

If Dormant

• Do not repot or water.
• Require 3–4 month dry, cool rest.
• Rebury or leave in pot. Wait for spring sprouting.

If Rotted

• Cut away mushy parts.
• Air-dry in shade weeks.
• Dust with sulfur (garden center).
• Replant in spring.

Colocasia tolerates winter wet; Alocasia often doesn't. Your watering (weekly) may be too much for shortening days.