How to plant peach tree in Zone 4?
I lost two peach trees to winter kill, a fifth year tree and a 2nd year tree. The trees leafed and died because I am sure it was at the graft. Now I have suckers growing from the root, and that's all that is growing.
I grow roses. With roses in Zone 4, the rule of thumb is to plant the graft, the most cold sensitive part of the plant, 3 - 4 inches below the surface. In Florida, you would plant the graft 3 inches above the surface.
The peach tree recommendations are to plant the graft at or above the surface if I remember correctly. But I am not so sure that advice is good in Zone 4 in view of my experiences coming out of winter this year.
What is the purpose to planting the peach tree graft at or above surface? I am guessing that if my graft were below the soil surface a few inches it would be less likely to dry out and die from the effects of an extremely cold winter.
Experts, please comment.