Learnt by Level Up

These Pokémon learn Grassy Terrain at the level specified

Name ⇧⇩	Level ⇧⇩	Type ⇧⇩
Oddish	45	grass poison
Gloom	56	grass poison
Vileplume	1	grass poison
Tangela	48	grass
Bellossom	1	grass
Roserade	1	grass poison
Tangrowth	50	grass
Flabebe	24	fairy
Floette	27	fairy
Florges	1	fairy
Comfey	46	fairy
Tapu Bulu	1	grass fairy
Rillaboom	1	grass
Meowscarada	58	grass dark
Smoliv	23	grass normal
Dolliv	23	grass normal
Arboliva	23	grass normal
Wo Chien	65	dark grass
Floette Eternal	27	fairy
Voltorb Hisui	50	electric grass
Electrode Hisui	50	electric grass

Learnt through Breeding (Egg Moves)

These Pokémon learn Grassy Terrain through Breeding (Egg Moves) at the level specified

Name ⇧⇩	Level ⇧⇩	Type ⇧⇩
Bulbasaur	0	grass poison
Paras	0	bug grass
Exeggcute	0	grass psychic
Chikorita	0	grass
Hoppip	0	grass flying
Sunkern	0	grass
Treecko	0	grass
Seedot	0	grass
Turtwig	0	grass
Cherubi	0	grass
Snivy	0	grass
Sewaddle	0	bug grass
Maractus	0	grass
Skiddo	0	grass

Learnt by Technical Machines (TMs)

These Pokémon learn Grassy Terrain by Technical Machines the level specified

Name ⇧⇩	Level ⇧⇩	Type ⇧⇩
Ivysaur	0	grass poison
Venusaur	0	grass poison
Exeggutor	0	grass psychic
Mew	0	psychic
Skiploom	0	grass flying
Jumpluff	0	grass flying
Sunflora	0	grass
Celebi	0	psychic grass
Grovyle	0	grass
Sceptile	0	grass
Nuzleaf	0	grass dark
Shiftry	0	grass dark
Shroomish	0	grass
Breloom	0	grass fighting
Cacnea	0	grass
Cacturne	0	grass dark
Cradily	0	rock grass
Tropius	0	grass flying
Cherrim	0	grass
Arceus	0	normal
Cottonee	0	grass fairy
Whimsicott	0	grass fairy
Lilligant	0	grass
Deerling	0	normal grass
Sawsbuck	0	normal grass
Foongus	0	grass poison
Amoonguss	0	grass poison
Chespin	0	grass
Quilladin	0	grass
Chesnaught	0	grass fighting
Gogoat	0	grass
Rowlet	0	grass flying
Dartrix	0	grass flying
Decidueye	0	grass ghost
Fomantis	0	grass
Lurantis	0	grass
Bounsweet	0	grass
Steenee	0	grass
Tsareena	0	grass
Grookey	0	grass
Thwackey	0	grass
Gossifleur	0	grass
Eldegoss	0	grass
Flapple	0	grass dragon
Appletun	0	grass dragon
Zarude	0	dark grass
Calyrex	0	psychic grass
Enamorus Incarnate	0	fairy flying
Sprigatito	0	grass
Floragato	0	grass
Bramblin	0	grass ghost
Brambleghast	0	grass ghost
Toedscool	0	ground grass
Toedscruel	0	ground grass
Capsakid	0	grass
Scovillain	0	grass fire
Brute Bonnet	0	grass dark
Iron Leaves	0	grass psychic
Exeggutor Alola	0	grass dragon
Zarude Dada	0	dark grass
Calyrex Ice	0	psychic ice
Calyrex Shadow	0	psychic ghost
Lilligant Hisui	0	grass fighting
Decidueye Hisui	0	grass fighting
Enamorus Therian	0	fairy flying