Why Are My Plant Leaves Turning Yellow? Causes and Fixes

Yellow leaves are one of the most common problems gardeners face. Whether you’re growing herbs on your kitchen windowsill or vegetables in your backyard, seeing green leaves fade to yellow can be alarming.

But don’t worry—yellowing leaves are usually a symptom, not a death sentence. Here's how to identify the cause and fix it quickly.

1. Overwatering

Symptoms:

• Leaves turn pale yellow, starting from the bottom

• Soil feels soggy

• Wilting despite wet soil

Solution:
Let the top layer of soil dry before watering again. Ensure pots have drainage holes. Consider switching to well-draining soil or adding perlite.

2. Underwatering

Symptoms:

• Leaves feel dry or crispy

• Plant looks droopy

• Soil pulls away from the sides of the pot

Solution:
Water deeply until excess water drains out. Keep a regular watering schedule and monitor soil moisture with your finger.

3. Lack of Nutrients

Symptoms:

• Older leaves yellow while new growth stays green

• Stunted growth

• Pale leaves with green veins (chlorosis)

Solution:
Apply a balanced liquid fertilizer every 2–4 weeks. For herbs or vegetables, look for organic options suitable for edibles.

4. Pests

Symptoms:

• Tiny bugs under the leaves (aphids, spider mites, whiteflies)

• Sticky residue (honeydew)

• Curled or distorted leaves

Solution:
Spray the plant with neem oil or insecticidal soap. Inspect new plants before bringing them indoors and keep affected ones isolated.

5. Improper Light

Symptoms:

• Leaves lose color or turn pale yellow

• Leggy stems reaching toward light

Solution:
Make sure the plant gets the light it needs. Basil, for example, thrives with 6–8 hours of sun. If growing indoors, consider a grow light.

6. Temperature Stress

Symptoms:

• Sudden yellowing after moving plant

• Leaf drop

• Burnt edges or spots

Solution:
Avoid placing plants near heat sources, air conditioning vents, or drafty windows. Keep them in a stable, temperate environment.

7. Natural Aging

Symptoms:

• Only older, lower leaves turn yellow and fall off

• New growth appears healthy

Solution:
No action needed. This is part of the plant's normal life cycle. Simply prune away the yellow leaves.

Final Thoughts

Yellow leaves are a warning sign—but one that can usually be fixed with a little observation and care. By checking soil moisture, light, and pest presence, you can bring most plants back to full health quickly.

Stay proactive, and your plants will thank you with lush, green growth.

Images: Reddit