It looks like Salvia involucrata to me.

Rose Leaf Sage (Salvia involucrata)
http://garden.org/plants/searc...

There are several cultivars and they have subtle differences in flower arrangement and color.

Thank you, Danita!

I see the slight differences between cultivars. Mine are a bit taller than 6' and start blooming late winter, but it is the plant you identified.

I grew mine from cuttings received from a neighbour and have not observed any seed production during the 3 years I am growing them. Hummingbirds adore these shrubs!