How do you prevent the soil used in house plants from going mouldy?

Over watering, ensure there is no dead matter lying on the compost(dead leaves), ensure there is good ventilation around your plants or they have a very good chance of contracting botrytis(grey mould) if they haven't already, spray with benomyl.

How do you prevent the soil used in house plants from going mouldy?
Firstly if it were me I would make sure that it was'nt going off already, then I would sift through the soil through with my fingers to see if there were no insects or eggs. I would put the soil in polythene bags and store in a cool dry place,until ready for use.
Reply:Plenty of plant food dug into the soil. don't water too often.
Reply:do not overwater your plants i only water mine twice a fortnight and only once a week in the winter plants some of them dont like to much water because they get water logged
Reply:Put it somewhere dry, not moist.
Reply:Yes this is a sign that you are watering to much
Reply:The substance in question is mold, a type of fungus that grows in soil. It is not harmful to the plant. The mold spores were probably introduced with the soil that was added when the plant was repotted.





Often, the mold can be eliminated by scraping it off the surface, along with the loose surrounding soil. It requires doing this repeatedly as it reappears.





Another alternative is to purchase a fungicide that can be applied as a soil drench.
Reply:Don't water until it has dried out to a depth of one inch. Don't let plants stand in water in the tray.