R2elk
Almost Self-Reliant
Problem is we are not a -20°F area. We routinely are -30°F and last winter was -40°F.@R2elk
Have a closer look at the following peach varieties for zone 4. All 4 are said to be hardy to -20F -28C. You may have to take some extra precautions when you dip below the minimum temp. Maybe a tent of plastic might help? 🤷♂️ But you can research the best means.
Intrepid
Contender
Blushingstar
Reliance
Jesus is Lord and Christ 🙏❤️🇺🇸
Even if a tree makes it through the winter, it takes an unusually mild spring to produce fruit. I have a prune type plum that does okay in town but I have gone 20 years between times when they fruited here. I have apricots that survive fine but have only produced fruit one year.
I have a peach tree in the garden that survived 5 winter but the voles girdled it this past winter. It came back from the roots but not very strongly because the grape vines have completely covered it. It came up from a peach seed buried with kitchen scraps in the garden.
I have two new volunteer peach seedlings this year in the garden. If they survive the winter they will get transplanted elsewhere.
I have been at it for over 30 years here. If it would have a chance to grow here, I have tried it.
If it can't survive on its own I am not going to use extraordinary means to keep it alive especially since keeping it alive does not necessarily equal producing fruit.