A. Remember that avocados are very iffy here in the Las Vegas Valley. It will freeze back so keep it against a hot South or West wall, trellis it near a warm winter wall and keep it draped with some sort of sheet or crop cover at nights when you think it might freeze.
Pick a variety that is more cold-hardy if you can find one. Anyway you cut it, it will be an experiment so get ready for the possibility of losing it. You can plant it this fall but protect it this winter and in succeeding winters.
Frequently asked questions about avocado click here