Q.Zone 4 Winters
Is there some way a person can tell if your plant will survive Zone 4 winters?

A search on the internet will provide you an answer. Type in the name of the plant but try to use it's Latin name. Nicknames given by gardeners can refer to multiple plants that are very different. Simply type in the name followed by zone or even just by the name. Example - Hardy Hibiscus zone. You will get tons of possibilities. Many retailers on-line include the zone for a specific plant they are selling.I am assuming you know your zone but if not, there are maps by just searching for plant zones.