Posted: 24/01/2015 at 16:59
Try and buy the plumpest tubers with the tubers still firmly attached to the central stems. The new shoots will come from the base of the old stems but the old tuber is needed to get the plant going, although it will rot away over the year, and new tubers form. You should preferably get them potted up, or in trays, with barely moist compost or sand to get them going, and keep in a frost free place. They will need little or no light until the shoots start, then move into a well lit place. Depending when you have your last frosts, they are often not planted out (if shooting or young plants) until May or June, so don't get them going early if you have no suitable protected place to keep them in leaf.