Green algae stuff

[Lady Jana Muck]

Could any of you nice people who have greenhouses tell me how I could stop green slimy algae forming on top of the compost in pots. Its even rotted some plants last year. The only way I could help the plants was to scrap the algae off the top and cover the top with Vermiculite but even that started to turn green. Any ideas?

[Hazel at the Hill]

I'd guess that the greenhouse needs a bit more ventilation, Jana?

[crichmond]

Is it possible that the compost is also too wet, as well as needing ventilation.

[Hans Mum]

more ventilation needed & the increased ventilation will stop the build up of condensation which wets your compost

[rustylady]

Basically your compost is too wet and there is not enough airflow (ventilation) to dry it out at this time of year. If you get a day where the temperature is above 5 degrees, then open the greenhouse doors and windows for at least an hour or so to keep things moving.

[Lady Jana Muck]

Thank you for all your info, that does sound about right