You have this plant outdoors?? Yes it is flowering. No it isn't going to grow any taller. Now if you want to have some real fun and learn some things, clone that bitch. Set up a small area 1 sq.ft. would be sufficient to start with. Get a couple cfl's to light them with and baby them. You will have to revert them back to vegging which will take a couple of months of carefully removing all of that old flowering growth. By that time you should be ready to clone them and move the original clones into your flowering room. The one your gonna build of course. VV