White spots on the potting soil are mold or limescale deposits. In both cases the plant can be saved.
is that mold With indoor plants or plants in the garden, it can happen that white, fluffy patches form on the potting soil. The cause is Staunsse. This occurs when the water in the ground cannot drain properly. This causes mold to form on the surface. Sometimes it also stinks from the pots because not enough air gets in. But not all white spots mean mold – it can also be limescale. What helps?
Fighting mold
Since a lot of moisture has accumulated in the pot, the roots of the plants have to dry out first. Therefore, as a first step, take the plant out of the tub and let it dry. This can take a few days. Do not add more water during this time. It is also important to remove the white spots on the ground. In addition, you can treat the surface with an antifungal agent that is available in the garden center.
The main reason why water builds up in the pot is poor soil structure. It is therefore advisable to remove part of the old soil after drying and to top up the pot with new soil. This should be loose and airy. In order to prevent white spots in the future, the plants should be given sufficient but never too much water. What also prevents the formation of mold in indoor plants: regular airing. In addition, the plants should be placed in a bright place.
Hard water can also cause white spots
The upper part of the potting soil is white, but not fluffy? Then it is lime stains. These occur when the plants are watered with hard water. This causes limestone to form on the earth. To avoid this, plant owners should run ordinary tap water through a limescale filter before watering. Another possibility: add a dash of citric acid to the tap water.
