That's a question only you can answer, Gabe ! I've left some......and had them be alright, and sometimes ,NOT so alright. And on the flip side, I've removed them from the "rotted" stuff, disposed of it, and had great luck.....and , then, also, some of THOSE didn't make it
. So, to me, it's a gamble, either way. One thing I DO think makes a positive difference.....take a sharp knife, and split the top of that 'rotted" main rhizome (they sometimes already have a "split top"), I think that lets them 'dry up" faster (and, may also allow a little of any of the 'bleach water", or comet, or whatever you use (if anything !) to get inside....where the "action" is.