List of the best Grass type Pokemon, ranked by Pokemon masters like you. This list ranks the greatest Grass Pokemon from every generation, so you can vote on everything from Venusaur to Breloom. Many trainers choose to leave Grass types out of their rotation, choosing to teach their other Pokemon Grass type moves instead. Grass types can also be tough to switch into play during a battle, since they're weak to 5 types- tied for first with Rock type Pokemon.
If you want to know, "What are the best Grass Pokemon?" or "What are the strongest Grass type Pokemon?" then this list will be of great help to you.
http://www.ranker.com/list/best-grass-pokemon/ranker-pokemon,
Venusaur
Celebi
Sceptile
Meganium
Tangrowth
Exeggutor
Abomasnow
Leafeon
Breloom
Torterra