they will grow pretty big depending on the strain. the pot is pretty big and plants cean push them selfs out of pots it happend to me with my big one then i had to put it in a trash can. but you cean also top them to keep them from growing or pruning them. it basicly stunts the growth and the plant will be a little slower after. but every time you top it will slow down more and more. but if done rite you should get a good harvest and prevent losing buds. just not big buds. little ones kind of all over. hoped that helped