These seedlings were propagated from good performing Contenders that we selected and grew out in Montana. Contender has been a more reliable variety for us and these should not disappoint. The Contender mother trees have survived -28 in Florence, MT (with good air drainage) and. One of the best flavored peaches of the commercial yellow flesh varieties. These seedlings saw a prolonged -24 F on Jan. 13th 2024, with days on both end continually below 0, without showing any signs of frost damage. Our suspicion is that these seedlings could make it into the -30’s once they’re bigger, as older trees tend to become more resistant to cold temps (as long as they don’t have injuries). Freestone. Hardy to zone 4 as they have survived our -25F from 1/13/24 without any damage. May be able to even tolerate -30 to -33F after a few years.