Bluestone Perennials has Firebird and other Agastaches.
http://www.bluestoneperennials...
Lazy S'S Farm Nursery has Firebird and other Agastaches
http://www.lazyssfarm.com/Plan... (scroll towards bottom of page)
I just might to grow that one again next year.
Agastache 'Firebird' is a hybrid of two Agastaches, A. coccinea and A. rupestris.