I usually keep them 3 year minimum. My Kate Carpenter seedling I have had for about 5 years and although it is only 12 bud count, I am keeping that one. Probably will never be registered but will use it as a bridge plant. I have several like that, that I wouldn't register but will keep as bridge plants. Ac tually forgot to post one more seedling. This one is SARAH'S TRUE COLORS X TECHNY PEACH LACE. Sorry didn't mean for my feet to get in the pic, lol.