Cast Iron Plant brown spots

Compare fresh leaves with older ones. A dry patch that has stayed unchanged may be old abrasion or sun injury; new spots appearing on several leaves need a current-condition check.

Match the marks to their exposure

Shade leaves if dry tan patches appeared on the sun-facing side after a move. Cast iron plants grow well in indirect light and can scorch in intense direct sun.

For wet-looking or enlarging lesions, keep foliage dry and separate the plant while identifying the cause. Check drainage and roots if spotting comes with yellowing or soft leaf bases. A halo alone does not identify root disease.