The Hardiest of Hardy Perennials. Generally speaking, a plant is classified as a perennial if it can survive to Zone 7. Above that range, plants become tender perennials or annuals. For the purpose of this article, we will only consider the "hardiest" of hardy perennials, plants that are hardy to Zones 4 and lower (or higher in latitude). The plants on this list are definitely tough enough to survive your area's worst winters.
Get a paper towel and wrap your apple seeds in them. Wet the paper towel and put it in the plastic bag. Make sure the plastic bag is sealed tight, and put it in the fridge. Your seeds should take about a month to germinate but check every few weeks and wet again if dry. Your seeds will start to have little white sprouts coming out of them soon enough that's when you know there ready for planting.