A neighbor down the street dug up all of his bearded iris and offered some to me (it ended up being about 20 plants of various sizes). I got them, bare root, in early November and didn't have time to get them in the ground. In mid-December I potted most of them up and put them in my unheated basement, a few made it into a planter outdoors. The other day, while I was checking the pots to see if they needed water, I noticed that the iris are growing! Should I be concerned about this? I could move them into the garage where it would be colder but still out of the weather or I could put them outside. I am in Zone 6 and right now we have snow on the ground and a warming trend coming next week. I'm just afraid that putting them outside would shock them and I would lose the plants. Any suggestions?