Alfalfa varieties differ in fall dormancy, defined asgrowth during the fall. Nondormant alfalfa varieties are usually planted in mild winter areas for their ability to grow in the fall. Nondormant, very nondormant, and extremely nondormant alfalfa varieties (fall dormancy class 8, 9, and 10) are adapted to elevations below 4000 feet in Arizona.
This article contains a chart of non dormant alfalfa varieties for Arizona. Suggestions for determining an appropriate fall dormancy class, identifying potential pest problems, yield, and salt tolerance are all discussed.