here is my Novak, Tori, Xmas
i bought a grafted xmas tree, and tacked on a couple scions (using a sort of side graft, or wedge)
I've had to prune the tree to keep the canopy balanced.
xmas scion in the middle of the canopy flowering heavily
Novak scion on the right side of canopy, just starting to put out flowers, right behind xmas
Tori scion, lower left of canopy, still has yet to bloom this year (although it fruited for the past 2 yrs)
I notice if the scions all flower at the same time, you get a bunch of seeds in the fruits.