Here is a grass mod those who like it simple.
My modded grass Version ist without waterflora! also no pepples! just grass only!

Important!
 Skyrim.ini:
[Grass]
iGrassCellRadius=2
bAllowCreateGrass=1
bAllowLoadGrass=0
bGrassPointLighting=1
b30GrassVS=0
iMaxGrassTypesPerTexure=5
iMinGrassSize=40   < 40 perfect dense good for fps

Skyrimprefs.ini
[Grass]
b30GrassVS=0
fGrassStartFadeDistance=9000.0000
fGrassMaxStartFadeDistance=9000.0000
fGrassMinStartFadeDistance=400.0000

credits:
Pfuscher for the multiple grass texture