There is a tree nursery near by, they mostly sell bagged or potted trees but some they dig to sell you.
Of course when I asked them they said their trees and shrubs were warranted for a year and I could plant them all summer long.
Now that was mighty nice to know if I were going to pay a tidy sum for a tree of shrub to plant if it didn't make it the first year I could get my money back.
Most goggle sites leaned toward spring planting up untill the end of May, the months before June tend to be wetter and cooler than June and beyond.

Al