best dwarf root stock for grafting in zone 7a?
I am new and trying to get off on the right foot before starting some ambitious plans here. I intend to plant 9-12 dwarf fruit trees and bushes as that is all i can fit
step one was identifying what will grow easiest in my zone. (lets leave lemons for later ;) If I accept Mr Smiths opinion, he gives in "ScottÃ¢ÂÂs Guide To Easy Tree Fruits for Baltimore " .pdf then I will be looking for :
he lists others but is what I am interested in.
Outside of the easier stuff is apples/quince/medlar family and the peach/plum family.
My questions begin at step 2 here...
Dont we need to get the variety we choose on a rootstock appropriate for our zone (in this case zone 7a)? Unfortunately he does not mention what stock is preferred for ANY variety. Nor is the author a fan of multigrafting...
So then once we have found our hardy dwarfing roots stocks we would want to pick the one that will accept the most varieties via grafting. that is my current mission to find if anyone can tell me.
The spawing question is:
If i am able to find an apple root stock that is dwarfing, pest and disease resistant, and able to accept a few varieties as grafted scion then I would have a tree with 4 diff apples, lets say...So even tho the root stock is not compatable with any more than the 4 we found, can we continue to graft other compatable varieties on the 4 original grafted branches.?
I will begin year one by planting my choice variety on this prefered root stock and will spend years achiving my goals, but I hope starting right with some science will avoid the disappointment other may have experinced.
Thanks for opinions both positive and negative!