My knock outs have been blooming non stop too, and I don't do a thing to them. I like them for what they are, but do not really consider them a rose per say. I have the dbl pink in my front yard and I like them pretty well. The red is what I started this thread with, decided they are not really red to me, and do not match a thing and look so gaudy so I am tossing them when I get to it. It has been raining and I have been so busy w other things I haven't got to it yet. I don't understand folks who say they don't have scent, my yellow ones smell strongly to me, the red and pink smell too but not as much as the yellow.
