Why Your Dieffenbachia Leaves Are Yellowing

Multiple Causes, One Symptom

Yellow leaves on Dieffenbachia (Triumph, Camille) can stem from light, water, or natural aging.

Light Check

South-facing room is good, but >6 feet from window may be too dim. Direct sun on leaves causes scorch. Aim for bright indirect all day.

Watering: The Likely Issue

Watering all plants on the same schedule is a mistake. Each pot dries at its own rate.

• Small pots (6"): water when top 1" dry.
• Large pots: water when top ¼ of soil dry.
• Err on the dry side if unsure.

Water Quality

Letting water sit overnight only helps if heavily chlorinated. Hard water? Use filtered, distilled, or rainwater.

Normal Aging

New plants shed older leaves after relocation. All Dieffenbachia become leggy over time—prune to rejuvenate.