What moves does Torterra learn?

Torterra is capable of learning Earthquake at Level 32, at 33 it learns Leech Seed, 39 it learns SYnthesis, 45 it learns Crunch, 51 it learns Giga Drain and at Level 57 it learns Leaf Storm.

It can also learn Frenzy Plant. If you go to Route 25 and look around you will find a man that will teach it to torterra for free.