I’ve been thinking about this one since the post first went up last night and my trees would be:
1.) Honey Jar jujube, with a few others (Sugar Cane, So, etc) grafted on.
2.) European Plum- some combo of Valor, President, Empress or Middleburg. Note that I’ve only sampled these from others (or in one case read Scott’s description), so I’m not sure which would be the primary tree.
3.) Goldrush apple, with secondary grafts of Golden Russet and Sweet Sixteen and maybe a few others (Kidds and/or Ashmeads). 5 varieties fit nicely on a tree…
Just missing the cut was a Korean Giant Asian pear with a 20th century graft (good keeping, to extend the season). I suppose I could try a Winter Banana interstem on tree #3 to get a Korean Giant onto the apple.
I also thought about an apricot- maybe Tomcot, with an early one grafted on so that I could have fruit in June. But, apricots don’t seem to live too long in my yard and I’d hate to do that if I only had 3 trees. The same applies to peaches, though to a lesser extent (mostly due to borers). I’ve also had better apricots than I have peaches.
Clark- If you are limited to just 3, I’d want to make sure that they can get very large, instead of choosing a “bush” variety. 