Q.Why are blooms on Hydrangea tree turning brown?
we a have new hydrangea tree just set out and the flowers are turning brown but the tree limbs are still healthy. Any suggetions on how to treat this issue? I have cut some of the brown blooms off but others are turning brown now.

Certified GKH Gardening Expert
If you've inspected your plant and it has no insect or other damage, the browning of the blossoms may be its natural cycle, since it is mid-August. Plus, it has been living in a pot. Next season, it will probably turn pink or purple before it turns brown.
This article will tell you how to deadhead your new plant. https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/deadheading-a-hydrangea.htm
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/tree-hydrangea-growing.htm