White dots on expanded clay balls: This is what plant lovers need to know!

White dots on expanded clay balls: This is what plant lovers need to know!

Many plant lovers find white deposits on the expanded clay balls in their hydroponic containers. The first impression might suggest mold, but it shows Focus that these are harmless nutrient salts that come from the nutrient solution in the irrigation water. Since expanded clay balls are made of inorganic material, the formation of mold on them is impossible. The health risks of these deposits are negligible.

To remove the white residue, it is often sufficient to hose off the top layer of the substrate or clean the balls thoroughly under running water. Regular watering can remove even small deposits. Hydroponics, which means that plants do not grow in soil but in a mineral substrate such as expanded clay, offers many advantages, such as avoiding waterlogging and fungal infestation.

Benefits of Hydroponics

A key advantage of hydroponics is that many vessels are equipped with a water level indicator. This indicates when the plants need to be watered again. Ideally, the irrigation water should be in the lower third of the pot to provide the roots with the best possible care. The expanded clay balls are usually kidney-shaped because they are manufactured at around 1200 degrees Celsius. Their solid outer shell and porous interior ensure that water is efficiently directed to the roots of the plants.

However, plant lovers should note that watering in the growing phase must be specifically regulated after the plants have been moved. Loud My beautiful garden The water level should not be constantly at maximum, except for short periods, for example before a vacation. Too high a water level can lead to root rot because the roots then do not receive enough oxygen.

Tips for proper care

After switching to hydroponics, plants need time to adapt. It takes a few weeks for the plants to acclimate. Watering should therefore only take place when the water level indicator falls below the minimum. A centimeter of water often remains in the container, which ensures moderate moisture for the plants.

Proper care and watering are crucial to the well-being of hydroponic plants. With these simple tips, plant lovers can ensure their green companions stay healthy and happy.