Can You Hydroseed Over an Existing Lawn? Here's the Truth
If you're wondering can you hydroseed over an existing lawn, the short answer is yes, but there is a massive "but" attached to that answer. It's not quite as simple as just spraying some green slurry over your brown patches and watching a golf course-quality lawn appear overnight. If you just go out there and spray without any prep, you're basically just throwing money into the wind—or onto your grass, literally. ...