Mold on Potting Soil: 5 Tips on How to Prevent it
It can happen very quickly: Despite intensive care, mold has formed on the potting soil. So you can get rid of him quickly.
You have taken care of your plants with devotion, but suddenly a white fluff forms in the flower pot. Unfortunately, this is probably molded on the potting soil. These 5 tricks will help you.
Mold on potting soil: Not only dangerous for plants
Mold on the potting soil is dangerous not only for plants but also for humans and should therefore be removed as soon as possible. It is at least as annoying, but less dangerous when annoying sciarid gnats have nested in the ground.
5 tips against mold on potting soil
Repotting is mandatory
When potting soil is moldy, moisture is often the problem – the only thing that helps is repotting. Make sure that you replace the entire ball of the earth with fresh potting soil. Either you use a new pot or clean the old one thoroughly with a brush and hot water, otherwise, there is a risk that the spores will be transferred to the plant and you will immediately have mold on the potting soil again.
Prevent waterlogging with drainage
So that the soil does not become too moist again and the mold comes back, you should install drainage when repotting. It’s that easy: Cover the drain hole with a pottery shard and put a layer of expanded clay, gravel or coarse sand as the first layer in the pot. Then the excess water can drain off at any time when watering.
Water plants carefully
Before you water your plants, do a quick check to make sure the soil is still moist. If so, you can wait a little longer before watering, otherwise, the risk of mold is high. Otherwise, it is better to have smaller amounts of water than to put the whole pot underwater. Also, it can’t hurt to loosen up the soil every now and then with a small rake to aerate it. Then there is no mold on the potting soil.
Eliminate annoying flies in the potting soil
Moist soil is not only the ideal breeding ground for mold, but mourning flies also feel right at home there. If you notice the infestation early on, you can tackle it with yellow stickers and thus prevent the flies from laying larvae and damaging the roots. The sticky leaves are simply attached to wooden stalks, stuck into the ground, and thus serve as glue traps for the annoying insects. However, if that doesn’t help, you have to replace the earth.
How to find the right potting soil
Do not buy the cheapest potting soil, it is often already infested with mosquito larvae. You don’t necessarily recognize good potting soil by its higher price – the larvae can lurk anywhere. If you want to be on the safe side, get advice from a well-stocked garden center.