Soil Turning Green on My Starter Seed Trays, Why?

Morninglory added on March 9, 2014 | Answered

I am growing in a greenhouse and started my seeds, but the soil is turning green. The only difference this year is a wood heater.

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Certified GKH Gardening Expert
Answered on March 13, 2014

It sounds like there is algae on the soil. It is not harmful but it does indicate that there may be too much moisture in the soil. You should reduce slightly the amount of water the plants are getting.

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