Plant Problem Lab

Topic

Yellow Leaves

Start with which leaves changed and whether the root ball is dry or wet. These guides separate ordinary aging from problems affecting the whole plant.

Useful checks and guides

Where to start

One old leaf or several?

An occasional oldest leaf can fade while new growth stays firm. Several leaves changing together, or pale weak new growth, needs checking.

Color or damage?

Variegated leaves can naturally contain yellow. Newly opened leaves may begin pale and darken; compare them as they mature.

What it could be

Yellowing with wet-soil wilt

What you may see: The root ball is wet and the plant remains limp.

Next check: Empty runoff and check roots if decline continues, especially with a soft base.

Yellowing after a dry spell

What you may see: The pot is light, or water escapes around a dry center.

Next check: Rewet the root ball evenly and drain. A damaged leaf may yellow after the plant has already stood up.

Stippled or scarred yellow areas

What you may see: Fine pale dots, silver marks, black specks, or sticky residue.

Next check: Inspect undersides and stems for pests; a whole-leaf watering diagnosis can miss them.

By plant

Yellow Leaves by plant

Choose your plant for more specific advice.

Browse plant library

More guides