The user turns the ground to grass for five turns. This restores the HP of Pokémon on the ground a little every turn and powers up Grass type-moves.
Grassy Terrain is non-damaging move, which lasts five turns. It increases the HP of all grounded Pokémon by 1/6 of their max HP, and the Grass-type moves they use have their power increased by 50%. In addition to that, if user is a non-Flying-type Pokémon, its attack will increase by 50%.