Q.When Is The Best Time Of Year To Transplant A Peach Tree From Container To Ground?
i have grown peach trees from pits in containers and would like to put them in the ground

Certified GKH Gardening Expert
This can be done in Autumn or Spring when the weather is mild. Planting in the heat, or too close to frost will not give the roots adequate time to take before harsh weather arrives.
Plan on giving the roots 4 to 6 weeks of recovery before frost or heat, depending on when you choose to plant.
Here is an article that will help you to grow the tree:
https://www.gardeningknowhow.com/edible/fruits/peach/peach-tree-care.htm