What do the brown areas look like, and is there any webbing?
The pattern of browning — and whether you spot fine webbing — tells you if it's the air, pests, or salt build-up.
What do the brown areas look like, and is there any webbing?
Fine webbing and tiny pale speckles under the leaves→Crispy brown edges — heating or AC nearby→Brown tips with white crust on the soil — I fertilize often→
Read the full Dumb Cane care guide →
Reviewed June 2026 · how we check this