Spiders that live in your grass can be from a multitude of species, most of which will be harmless. They can be beneficial for keeping insects in your yard from over-infesting.
Like any living creature, each of these creepy crawlies needs food and water to survive; if you’re reading this, they have probably found that in your yard.
In general, spiders won’t harm your grass, except for the Wolf Spider.The Wolf Spider is the only common grass spider that does not spin webs; they actually dig holes and wait for their prey.
Indirectly, though, spiders can damage grass if the homeowner is not careful. If you use a pesticide to eliminate spiders from your lawn, the chemicals could damage the grass.