I do just about what V does but don't worry about cutting roots.
They stay on the small board deck outside the greenhouse door. That location only gets about an hour of late afternoon sun each day. If there is a chance that they will get wet, I move them for awhile and then put them back there.
At some point, I will give them a good rubbing over the compost bucket with my gloves on so as to remove any soil. The roots come off then.
Three weeks? Often, they are there that long. I used to hang them on the northside of a board fence but with a rebuilt & larger greenhouse step, that's the better location for them now.
Steve