The last application of fertilizer should be made using a Fall Fertilizer This process optimally prepares the lawn for the winter months and strengthens it for the cold season.

The best time for the final fertilization is usually between mid- and late October. Soil temperature is an important factor here:
The soil should still be at least 7 °C at the time of fertilization so that the lawn can absorb the nutrients.

The easiest way to measure the soil temperature is to use a meat thermometer, which is inserted a few centimeters deep into the soil.

Alternative rule of thumb:
If you don't want to measure the soil temperature, you can use the lawn's growth as a guide. As soon as the lawn starts to grow noticeably slower, it's time for the final fertilization.