https://de.wikipedia.org/wiki/Rasengitter https://de.wikipedia.org/wiki/Rasengitter These are abundant in Germany, but the green that grows between them isn't

https://de.wikipedia.org/wiki/Rasengitter https://de.wikipedia.org/wiki/Rasengitter These are abundant in Germany, but the green that grows between them isn't exactly a pleasant sight. They are not so much used for the greenery but as a compromise between natural seepage and vehicle compatibility. That seepage is important because any sealed off surface area increases flooding risk downstream. Of course nobody really cares for that, but the sealed surface also determines your utility bill for wastewater treatment, and people quite certainly do care for that.