@anamckellar
In Luxembourg where I live, 'Fauchage Tardif' (delayed mowing) signs appear every year next to pretty much every square metre of grass verge throughout the country during the growing season even bang in the middle of the capital city.

Essentially, the verges and other areas of wild land are left to grow until vital species of annual wild flower have had time to grow, flower and run to seed. Thus ensuring (hopefully) their survival and the survival of the insects that feed on their nectar.

Last year, the verges in the area where I live really did get a bit out of hand as they reached the height of my shoulders!