4-year old apple tree vs. 4-year old peach tree
3 years ago I ordered a Golden Delicious apple tree and a Saturn-type peach tree from Stark Brothers. They arrived together, I planted them on the same day, in the same general location. While I have not yet had any peaches go to maturity, the peach tree itself looks wonderful - has grown in height and width and has put out numerous new branches and leafs out beautifully each year. Basically, it looks like a nice, healthy tree (except for the lack of ripe fruit).
But the apple tree just hasn't taken off - there has been no major growth as far as I can tell - a few very small twigs grow each year, I get some small clusters of leaves. It is clearly alive and doesn't seem to be dying...but it isn't thriving at all.
I'm just surprised to see one tree growing so well while the other is languishing. But I don't know if this is something that can be chalked up to intrinsic differences between apples and peaches. Or if perhaps my apple tree was not in particularly good shape when I planted it? Or perhaps I need to do something more for the apple tree? I guess it is the lack of branching that has me mostly baffled. What would cause this?
Any thoughts? I wonder if it is time to dig up the apple tree and try again.