I hope it will bloom this year!
Please remember that long lived shrubs take time to get going. --Depending on the climate--such shrubs will spend the first two or three years putting out the roots that feed the plant to create the blooms.
People can't see plant roots because they're under the ground surface. But the plant roots are the factory which gathers and funnels the nutrients to support the greenery above the surface, which produces the desired blooms.
But once your hydrangea gets its mojo on, it will live for many decades producing a bounty of beautiful flowers. Patience my friend, it will come.
This year I think you will get flowers. Ten years from now your hydrangea will be huge. Gardening of long lived plants takes foresight. But they're worth the wait and the effort, and some day you can sit back doing nothing at all while your pretty and established hydrangea flowers like crazy. Time. Patience. It will happen.
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