Microgreen Growing Tips: Troubleshooting Common Issues
Even the most attentive growers can face challenges when cultivating microgreens. Understanding common problems and how to fix them will ensure you have lush, healthy greens every time.
Preventing and Treating Mold and Mildew
Cause:
  • High humidity
  • Poor airflow
  • Overwatering

Prevention:
  • Use fans for air circulation.
  • Water moderately and allow trays to dry slightly between mistings.

Treatment:
  • Remove affected areas immediately.
  • Sterilize trays and tools between uses.
  • Solving Leggy or Uneven Growth
    Cause: Insufficient light or overcrowded planting.

    Solution:
    • Move trays closer to a strong light source.
    • Space seeds evenly during sowing.
    • Rotate trays daily for even light exposure.
  • Dealing with Poor Germination
    Cause: Old or poor-quality seeds, incorrect moisture levels.

    Solution:
    • Test seed viability before planting.
    • Maintain consistent moisture (not too dry, not waterlogged).
  • Signs of Overwatering or Nutrient Deficiency
    Overwatering: Yellowing leaves, soft stems, foul smell.

    Nutrient deficiency: Stunted growth, pale coloration.

    Solution:
    • Reduce watering frequency.
    • Use a light, organic fertilizer if needed (only for slow-growing types).
  • Maintaining a Healthy Growing Environment
    Keep trays clean.
    Maintain a steady temperature (18–24°C / 65–75°F).
    Monitor humidity levels; ideal is 40–60%.
Perfect for
Beginners and intermediate growers aiming for high success rates and beautiful, healthy harvests every time.