Cut grass does not usually have poison in it, and there are many grazing animals such as horses and cows and sheep and goats and deer (etc.) which eat grass all the time, and are not poisoned by it.
Because poison kills plants
Roselia is a Grass and Poison type pokemon.
Good against: Grass Bad against: Poison, Ground, Rock, Ghost, Steel
grass poison.
Poison is very effective against grass pokemon.
The weakness to grass is ice, fire, bug, and poison
Grass and Poison type
Poison is strong against grass type Pokémon.
Poison-Type moves are only strong against Grass-Types. Poison-Type Pokémon are strong against Grass-Types, Bug-Types, Fighting-Types, and other Poison-Types.
How to cut Korean grass
Bug and grass. (>'_'<)
Grass