Last year I got a later order of DL's and planted them in the ground and mulched them. One of my plants got dug up by my chickens a couple weeks after I had planted it, I don't know how long it lay there waiting for me to find it, but I re-planted it. Then about the end of October I found it scratched out of the ground again. I thought as I replanted it I can kiss this one goodby. Then this spring it greens up nicely, and now has two bloom stems showing. It's one called Calming Effect. We had several days of minus 22 degrees last winter. I did loose a few of the other ones over the winter though.