Dieffenbachia Leaf Drop: Root Stress from Water or Light

Plant Was Bushy, Now New Leaves Yellow and Fall

Owned since April. Still produces new leaves at top, but they yellow and drop.

Expert Diagnosis

Root-related stress: soil too wet or too dry. Should be moist. Wet soil causes serious problems. Check roots: off-white good, black bad. Prefers indirect light (near window). Direct sun burns leaves.