Thanks for the picture! I bought it last year but haven't seen it bloom yet. Chatter (parent of Epicenter) was reported as a rebloomer several years ago. To zone 7. Navy Strut (in Hellow Darkness) (zone 9) is also recorded in the Cumulative Check list.
It would appear Ozark Rebounder may get the rebloom (possibly) from both sides.
I'll be thrilled to report its rebloom here! (or even spring bloom)