I planted a Peach tree in my backyard in March or April and it has yet to produce any leaves. The plum and apple trees I purchased are doing just fine and look quite lustrous and very green in the same general area. I don't understand why I have yet to see ANY leaves even though it says the tree should be blooming some time around April. I don't know if I am not taking care of it correctly or if it is just the tree. I haven't seen any kind of insect around or on it except for a spider or two.
Peach Tree Hasn’t Grown Leaves
Certified GKH Gardening Expert
Some trees, like peaches, may be slow to start if they do not receive an adequate chilling period in winter. As much of the country experienced a fairly mild winter, this could likely be the reason behind your tree's leafing out issue. Here is more information: https://www.gardeningknowhow.com/edible/fruits/peach/peach-chill-hours.htm