This is a set of 9 Substance Designer made SBSAR materials available for use in a number of programs like Substance Painter, Unreal, Marmoset Toolbag and Unity.
These materials have many options including the colors, edge wear, some detail sizes and amounts, and more.
No plant or leaf meshes are included, but these are made to be easily used with whatever program you create your plants with.
More images and video here: https://www.artstation.com/artwork/JlYL5A