By Bettyallan
United Kingdom 
what is the cause of soil in the greenhouse to turn green
7 Aug, 2014
Answers
Yes, moss or algae caused by poor drainage in the compost and/or not enough ventilation.
7 Aug, 2014
Damp undisturbed conditions is the ideal growing ground.
7 Aug, 2014
It will be either moss or algae. Are you growing into a bed in the greenhouse or is the green in your pots?
7 Aug, 2014