What to Do When Your Plant’s Leaves Start Turning Yellow

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Yellowing leaves are a common issue for plant owners. While it can be a natural part of aging, it may also signal underlying problems such as overwatering, nutrient deficiencies, or pests. This guide will help you diagnose the cause and fix it to keep your plants healthy.

1. Common Causes of Yellow Leaves and How to Fix Them

1. Overwatering

  • Signs: Yellow, droopy leaves, soggy soil, and possible mold or fungus on the surface.
  • Solution:
    • Check if the soil is too wet before watering.
    • Let the soil dry out between waterings.
    • Use pots with drainage holes to prevent root rot.

2. Underwatering

  • Signs: Dry, crispy, and curling yellow leaves.
  • Solution:
    • Water when the top inch of soil feels dry.
    • Use self-watering pots if you tend to forget watering.

3. Nutrient Deficiencies

  • Nitrogen Deficiency: Yellowing starts with older leaves at the bottom.
    • Fix: Add an organic fertilizer with nitrogen (e.g., compost, fish emulsion).
  • Iron Deficiency: Yellow leaves with green veins (common in citrus plants).
    • Fix: Use an iron-rich fertilizer or check soil pH.
  • Magnesium Deficiency: Yellowing between the veins.
    • Fix: Add Epsom salt (1 tbsp per gallon of water).

4. Lack of Sunlight

  • Signs: Pale yellow leaves, slow growth, and leggy stems.
  • Solution:
    • Move the plant to a brighter location.
    • Rotate plants regularly for even light exposure.

5. Pests and Diseases

  • Signs: Tiny spots, holes, or sticky residue on leaves.
  • Solution:
    • Check for spider mites, aphids, or fungus gnats.
    • Use neem oil or insecticidal soap to remove pests.

6. Natural Aging

  • Signs: Yellowing occurs on older leaves while new growth is healthy.
  • Solution:
    • Trim old leaves to allow energy to focus on new growth.

2. How to Prevent Yellow Leaves

  • Use well-draining soil to prevent overwatering issues.
  • Fertilize regularly but avoid overfeeding.
  • Keep plants in their ideal light conditions based on species.
  • Monitor for pests and act quickly if you see signs.

By identifying the cause of yellowing leaves early, you can help your plant recover and thrive.

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