Procedurally covering a plane with grass asset

Hey everyone,
First time poster and Unity beginner here. I just built a vertex shader for grass, and I want to cover an entire surface with the grass. Is there a way to do that? I've tried googling around and tinkering, but no significant success yet.

 

If it's a vertex shader, make a plane, put that shader on it with a Material, you're done. Am I misunderstanding something about your question?

 

You might try using unity's terrain generator, you can paint the grass in as a layer

you can set the Render Mode property as either Vertex Lit or Grass.
https://docs.unity3d.com/Manual/terrain-Grass.html

 

I think this on the right track? My vertex shader was made to animate wind sway on the grass, and I wanted to make a field of swaying grass. Recently found out that GPU instancing is a thing, so I've been trying that.

Inferring from your answer, would it be possible to just build a shader that populates a field with grass sprites(for lack of a better word)?