There are some weeds, if they occur, a lack of lime in the soil can be assumed

There are some weeds, if they occur, a lack of lime in the soil can be assumed.

Lime deficiency in the soil indicates, among other things: sorrel, Knotweed, chickweed, Pansy, Horsetail, Mullein and dog chamomile. If one or more of these weeds is very common, then it's about time, to examine the ground.