What do the brown areas look like, and what's going on around the plant?
The pattern of browning tells you whether it's the sun, the air, or fertilizer.
What do the brown areas look like, and what's going on around the plant?
Dry, bleached patches on the sunny side→Crispy brown tips — heating or AC nearby→Brown tips — but I fertilize often→
Read the full Cast Iron Plant care guide →
Reviewed June 2026 · how we check this