Spacing Medlars grafted to Pyrus (pear) Rootstock.
I have 3 medlars that i grafted to pear rootstock this spring. I wouldn't have chosen pear, but its all i had on hand when i received medlar scions that where leafing out already. The cultivars are "breda giant" "royal" and "nottingham".
So I was thinking of moving them out of nursery to their final locations this fall, but i am unsure of how wide to space them. Tight is better for me (as i am quickly running out of space for trees), but i have sandy soil so i don't want to crowd the trees to the point where they wont do well enough to produce well.
Also, is would spring transplantation to fall prepared site be a better idea?