Kansas is very dry at times and very wet at others. Our soil is clay so it cracks during droughts down to a small trees roots or can drown other trees such as cherries when wet. The only apricots I currently grow successfully are manchurian and sweet pit. The plums I have good luck with are prunus Americana, goose plum, sand plum, Canadian bounty plum, wild native seedling plums. I mention these because American plums for example make great rootstocks for many plums and other stone fruits. I don’t know a lot about FK but I know if I was in your position I would plant 10+ rootstocks and graft my best FK seedlings to those which will save you years of growing trees out. If each graft takes an inch of material you could produce 100 very nice FK seedlings that would be producing in a fraction of the time. Duplication also allows you to back up a variety you might lose otherwise which your aware would cost you years of work and is possibly irreplaceable. This is what I know about compatability grafting Compatibility grafting?
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