A "grassy patch" refers to a small area covered with grass.
Sentences with «grassy patch»
When a mysterious grassy patch of my front lawn died this past summer, it left behind the non-mistakable figure of an angel with wings and a halo. (chicagoparent.com)
One of the best, this campsite is set on the soft sand of the banks of the Orange River (there are grassy patches under acacia trees). (blog.sa-venues.com)
Outdoors, cats will love their own grassy patch in their favourite spot in the garden (cats.org.uk)