Hi Sallyann Ive got mine stored in my shed in a seed tray and they seem just fine. I will be planting mine when the weather is warmer. They say that they should be lifted at the end of the season, as I did, but my late father-in-law left his in the ground and they flowered their socks off every year, he was a very good gardener, so I'm going to do the same this year. Mind you I am in Bournemouth so it is milder here than other places. They are lovely though and make lovely cut flowers. Good Luck