No, unless it's possible that it's hidden power is grass.
If you wanted it to learn a grass type move to cover up its weakness, here are some alternatives:
It can learn Ice fang and Fire fang which can be used for grass types or Thunder fang for water types.
Source: pokemon.marriland.com
No he can´t.
Rock, Ground, and Water-type Pokemon are weak against Grass-type moves. This means Grass-type moves can deal twice the damage to the listed types.
No, in spite of the evolutionary line's green look and ability to learn certain grass moves, the entire line (with the exception of Gallade who is Psychic/Fighting) are pure psychic types.
Lapras is a Water and Ice type Pokemon so Electric type moves, Fighting type moves, Rock type moves and Grass type moves will be super effective.
Lucario- Fighting and Steel type. Lucario can learn moves of every type except for Grass and Flying type moves. However, Lucario's most powerful moves are Fighting Type so it is good to use Flying, Ghost, Poison, Psychic or Bug Types. As for what moves you should use, Fire, Fighting and Ground Type moves are all super effective.
Catterpie, Roselia, Scyther and many many more grass type Pokemon can learn bug type moves.
No he can´t.
Arceus does not require an item in order to actually learn Grass-type moves, however it can be given the Meadow Plate in order to boost the power of these moves by turning it into a Grass-type Pokemon.
it dosent
I think none, But if you're Pokemon can learn Ice moves. It will be super effective towards grass.
Bulbusaur and the reason why is because the first 2 gym leaders can be easily defeated by grass moves and bulbusaur is a grass type that can learn grass moves.
make your grass type learn other moves
Here is a fight between tyranitar and alexam. Alexam uses confusion on tyranitar. Then, it uses physic waves on tyranitar killing it. If Tyranitar went first, it would beat alexam by using shadowball. EDIT: Actually since Tyranitar is dark type, psychic type moves such as confusion do not affect it. On Tyranitar's turn it would use shadowball as stated and win the fight.
pretty good try not to have the same type of Pokemon though... So I would get rid of garcchomp because salamance can learn ground moves also you just have to buy them and he can learn fly and other flying moves!
not all grass type Pokemon can learn surf so i just caught a zigzagoon evolved it (at level 16) into a linoone and you can teach linoone surf so there you have it i hope this helped
Grass type moves and ground type moves.
Rock, Ground, and Water-type Pokemon are weak against Grass-type moves. This means Grass-type moves can deal twice the damage to the listed types.