I think the BEST thing you could do is to plant them now. If you have to store them a while, I'd cut the fans back to about 4" long, put them in a cool, dry place, just let them go back to "dormancy". This is going to rob them of lots of "vigor" (since they have already expended some energy starting new growth), but , even though it will set them back, they should survive it. I would still plant them as soon as you can....Arlyn