Crepe Myrtle Hardiness
When I lived in Virginia, I had several crepe myrtles that I truly loved. Now I live in Montana and want to plant one in my new yard. Technically, I live in a zone 5 valley surrounded by zone 4 mountains. Depending on the serverity of the winter, it can go either way! Yes, I know thats too cold for crepes but I was hoping against hope that maybe sombody grew a variety that was cold-hardier than the rest. Is there a variety of Crepe Myrtle you know of that (might?) be able to survive a Montana winter with proper protection? Another problem I must take into consideration; even though the summer days can sour into the 90's, it is not uncomman for the temperature to drop into the 40's at night...even in August.