Why Is My ZZ Plant Turning Yellow? Causes and Fixes

Yellow leaves on a ZZ plant almost always mean too much water. The thick rhizomes underground start to rot, and the leaves above turn yellow as they lose their supply.

Less often, the cause is too much sun, a cold draft or simple old age. Here’s how to tell which one you’re dealing with.

Match the Yellowing to the Cause

What you see	Likely cause	What to do
Several leaves yellow, soil damp, stems soft	Overwatering	Stop watering; check the rhizomes
One or two old, lower leaflets yellowing	Natural aging	Nothing; remove them when they fall
Yellow or bleached leaves facing a window	Too much direct sun	Move it back a few feet
Yellowing after a cold night or near a door	Cold damage	Keep it above 60 °F
Pale, yellow-green new growth	Very low light or hunger	Brighter spot; light feeding in summer

Fixing an Overwatered ZZ

1. Stop watering and tip the plant out of its pot.
2. Look at the rhizomes (the potato-like roots). Healthy ones are firm and pale.
3. Cut away any that are brown, soft or smelly, plus mushy stems.
4. Let the cuts dry for a day, then repot in fresh, dry cactus mix.
5. Wait a week, then water lightly. After that, only when the soil is fully dry.

A moisture meter helps you avoid a repeat.

Check price on Amazon. The full watering routine is in how often to water a ZZ plant.

Should You Cut Off Yellow ZZ Leaves?

Yes. A yellow leaflet won’t turn green again. Snip it off, or remove the whole stem at the base if most of it has yellowed.

If only a few leaflets on a stem are yellow, you can leave the rest. The green parts still feed the plant.

When Yellow Leaves Mean Something Worse

If stems are turning black or collapsing, the rot has spread further. See how to save a dying ZZ plant for the rescue steps.

For everyday care, see my ZZ plant care guide.

Yellow Leaf Questions