I found out the hard way. Some plants that I got that were Z5 hardy did not come back here. I think I am like right on the border or close to it. Now I only buy perennials that are Z4 hardy. I do dig up many bulbs that are not Z4 hardy like, Dalhia, Canna, and Glads. I don't do house plants because they die from non-watering. I am trying to keep some plants alive but it is getting harder. I wish Spring would get here.
