Here's something I picked up just recently, never having seen or heard of it before.....
Hydrangea involucrata. The buds look so much like Bethel sage (
Salvia involucrata var bethellii) that obvious the bud form is the involucrata bit.
Just love it as they unfold from that tight round bud to the lovely deep blue-purple flowers surrounded randomly by sterile white flowers with purple centres. It has fuzzy leaves as well, making it stand out even more as a strange Hydrangea. Great Stuff!! Also picked up a piece of a double white/pale pink (
H. i. 'Hortensis') at the same place, although this is just a rooted runner (Yes, it produces runners, something I've never seen in a Hydrangea before).
Enjoy!!