Leaves turning yellow: causes + quick fixes
Why Are My Indoor Plant Leaves Turning Yellow? (9 Causes + Fixes)
Yellow leaves are one of the most common indoor plant problems — and the cause is often simple once you know what to check. Use this quick guide to diagnose and fix it.
Start here: is the soil wet or dry?
- Wet soil + yellow leaves: usually overwatering / poor drainage
- Dry soil + yellow leaves: underwatering or heat stress
9 common causes (and what to do)
1) Overwatering
Signs: wet soil for days, drooping, yellow lower leaves.
Fix: stop watering, improve light/airflow, ensure drainage holes.
2) Underwatering
Signs: dry soil, crispy edges, plant looks “thin”.
Fix: water thoroughly until it drains, then follow the finger test going forward.
3) Not enough light
Signs: slow growth + yellowing + leggy stems.
Fix: move closer to a bright window (indirect light), rotate plant monthly.
4) Too much direct sun (sun scorch)
Signs: pale/yellow patches, dry burnt areas.
Fix: move out of harsh sun; keep in bright shade/indirect light.
5) Natural leaf drop
Signs: one or two older bottom leaves yellowing while new growth is healthy.
Fix: normal. Remove yellow leaves once they come away easily.
6) Temperature shock (moves, drafts, aircon)
Signs: yellowing soon after moving plant; leaf drop.
Fix: keep stable temps; avoid aircon vents and cold drafts.
7) Pot bound (roots too tight)
Signs: soil dries very fast, plant looks thirsty quickly, roots visible at the bottom.
Fix: repot one size up.
8) Nutrient imbalance
Signs: pale leaves, slow growth (especially in active growing season).
Fix: feed lightly during the growing season; avoid overfeeding.
9) Pests
Signs: sticky leaves, speckles, webbing, cottony spots, tiny insects.
Fix: isolate the plant, wipe leaves, and treat with a gentle, plant-safe method (follow product instructions).
What to do now (quick checklist)
- Check soil moisture (3–5cm down)
- Confirm drainage holes + empty trays
- Move to brighter indirect light
- Check under leaves for pests
- Remove fully yellow leaves
