We grow Siberian peaches from seed. The trees are rather short-lived and so whenever we have a crop we plant the pits so we'll have eventual replacement stock. The first year we did this I fussed around by putting the pits in trays in the root cellar, tried various methods of keeping them moist (plastic cover, misting, etc.) Ran out of trays and containers with lots of pits leftover so threw the rest into the compost heap. Only one of the cellared pits germinated but the compost heap had many peaches germinate when the soil warmed up. Talking to a friend with more experience than we had said he always plants Siberian peach pits outdoors right after harvest. So now we make a nursery bed with rows about 6" apart and furrow the pits about 2" deep and packed into the rows so the pits are touching. Enough germinate so that we end up with a tree every 6" or so. We've also successfully done this with Siberian apricots and butternuts. Here in Minnesota we don't get a peach crop every year but the trees usually survive, for the most part, and will fruit in subsequent years when the conditions are more favorable. It's not always the severe winter cold temps that are the problem. Usually it's spring frosts after blossoming. The apricots are worse in that regard as they flower waaay too early. Last year was the first real crop in 14 years and I would have to say that they really weren't worth waiting for. Nothing beats a tree ripened peach, but when it looks like there won't be a crop (no blossoms or too early flowering) we make sure we have a good patch of melons planted (Petit Gris de Rennes is our favorite). Dehydrated melon is a superior replacement for dehydrated peaches.