Help! Landscape Grass Output is also spawning on blended areas

Hello everyone!

I have been working on this issue all day and have searched the forums, but nothing seems to solve the problem.

So I have setup this simple landscapematerial with a LandscapeGrassOutput connected to the LayerBlend node, which is working fine, but…

I want my grass to only spawn on the grass layer and not on the blended areas. So basically, I don’t want the grass to spawn within the red area on the image below.

I have searched the forums and even contacted some people on Facebook. They had some solutions, but nothing seems to work as expected. Any clear explaination would be really appreciated, since I am pretty new to using nodes.

Thanks in advance and have a nice day!