Hi, in late April I planted a Prairie Horizon Manchurian Alder, Alnus hirsuta...
Hi, in late April I planted a Prairie Horizon Manchurian Alder, Alnus hirsuta 'Harbin.' Although it does have some new growth, some of it's leaves have dried up. I don't think I have been overwatering, but the soil in that area seems to be moist. There is weed barrier in this garden area, but not for at least 1-2 feet around the tree (3' diameter).
Ramsey County Minnesota
It is common for trees to suffer setback, sometimes quite severe, after transplanting. Read here about transplant shock:
Also, check here on how to plant a tree to give it the best chance for success.
All you can do now is make sure it is appropriately watered through dry spells and hope. Meantime, keep your receipt!