The small, extra dry, or "sick" ones usually get potted for a while....everything else goes straight to the bed. Every plant gets a permanent "ground tag", with it's name ( and a "rose label" type marker when bloom time comes). I print a "data sheet" for each cultivar (usually either the HIPS gallery page, or the AIS Wiki page) that gives me all the info on the cultivar. On the back of that sheet, I note where it came from, when it was planted, which bed it's in, and anything else I think might be needed later.
I keep the "data sheets" in binders (I also have a "master list" on computer.....shows hybridizer ,year of intro ,height ,season, class, bed location), with the rebloomers in their "own" binders. In the case of the more "rare" cultivars, I also note the "paper trail" of ownership (at least as far as I can) i.e. I planted it in 2006, I got it from X, who got it from Y, in 1987. The paper trail sometimes helps in determining "authenticity". i.e. If mine traces back to "Y, in 1987" and "Y's" plant was found to be an "imposter"...........so is mine !