I jinxed myself last winter when I told my sister-in-law that I got a
1/2 bushel of peaches every year from my *single* dwarf peach tree.

Our discussion was whether peaches need a cross-pollinator. If I
remember right, these trees supposedly did. The names are long
forgotten, but 10-15 years ago I bought two -- one died before either
had a blossom-- and the other has been making piles of peaches every
year since.

This spring it had no blossoms. I *did* prune a large horizontal
branch off late last fall. [maybe 20% of its foliage] I also opened
up the canopy above it as it was beginning to be shaded by some Sumac
to its west. It's at the foot of a east-facing slope & the sumac
was growing out and above the peach tree.

It looks healthy otherwise, so I'm guessing it just put all its energy
into new growth this year. Does that sound likely, or is 15 years
getting old for a dwarf peach?

Jim
[zone 5-6, NY]