Not sure Rob. I am refering to plants on this page: http://www.clemson.edu/crapemyrtle/varietieschart.htm
I would imagine there are some enthusiasts growing Lagerstroemia in your area. Not commonly available in garden centers though. Cheers, LPN.
Hot climate plants needing placement against sunny walls or in other warm spots to flower much here. Center for Urban Horticulute, Seattle has a collection planted in parking lot islands where surrounded by asphalt.