Moldy Seedlings - Knowledgebase Question

Huntington Beach, CA
Avatar for stevedalva0
Question by stevedalva0
March 11, 1998
I've been growing perennials and vegetable seeds indoors, by a sunny window. Although I have used commercial growing medium, some of the pots are getting moldy on the top. How can I avoid it, and how can I stop the mold that is already there from growing?

Answer from NGA
March 11, 1998
Mold on the top of the soil indicates too much moisture and not enough air circulation around the plants. Try separating the plants so air can freely circulate, and watering after the top of the soil has barely dried out. You can take a blunt knife or a spoon and gently remove the mold from the soil, then improve the conditions so it won't grow again. If your seedlings are strong, they shouldn't be adversely affected. If the mold has started to grow on the stems or leaves of the plant, they may not pull through, and you may have to replant. Cross your fingers that you've caught the problem in time!

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