Here is a Japanese Snowball Bush (viburnum plicatum) which is like a Hydrangea but not. One easy way to tell the difference is that this Viburnum blooms in the springtime while Hydrangea bloom in the summer. Read about these differences here. These blooms were also found during my stroll through the North Carolina Arboretum. Copyright 2024 Pamela Breitberg
Thanks Mrs. Pam, I have never heard of those.