Blending textures with Mesh Paint

Here i have painted onto the surface of my floor a grass texture to blend in with my grass geometry. 

My floor consists of 800 triangles, this is enough for me to get a good number of vertices for me to paint onto. The geometry will hold this information, so i can always change the textures later on.

Here you can see more clearly i have painted green to apply the grass texture, and the orange is an alternating texturing that surrounds it, the grass planes are the rectangular shapes that cut into the floors surface. 

Lastly this is the mesh paint material which is fairly simple and consists of connecting multiple textures to lerps and then assigning each texture with a vertex colour in which you select to paint.