That one is really turning purple isn't it? Are all these plants from the same bag-seed? Oh, here is a cool little tip if you want to keep this strain. If you take cuttings for clones from the very thin and bendable branches at the bottom of your plant, you can clone a flowering plant! It isn't easy, but it can be done! If your interested let me know, I'll brake the whole thing down for you. Or you can just look it up.....