I think you have to do something about that... Do less plants, depp them to keep them small, or take a clone off the plants you have now and plant it mid June.
U popped seeds in feb. They would grow into each other if they had 10'x10'. 5x5' will be ��. Don't think that they will not get enormous because it's your first year. All you have to do is water them and support them and they will be 10' wide.
The more I think about it, youre right again bud. Im gonna drop one plant per bed.