Answer: I hope you have your Endless Summer hydrangea planted in morning sun and afternoon shade. Hot summer sunshine can burn the leaves. I suspect that your plant is having trouble adjusting to its new home. Perhaps the exposure to sunshine is wrong, or the soil doesn't drain quickly enough to suit it. As long as you keep it watered this summer (one or two deep soakings per week), the plant should survive. This fall you can dig it up and move it (if necessary), or at least amend the soil so it drains faster and then replant it. It should be well established by next spring and should perform as expected.
Best wishes with your new hydrangea!
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