Bakersfield sits low in the southern San Joaquin Valley at just 404 feet, where alluvial soils deposited over centuries by the Kern River drainage create fine, dense ground that bakes hard under six inches of annual rain and long, dry summers. With only 6 inches of rainfall a year, homeowners from downtown near the Fox Theater out to Oildale and East Niles fight constant moisture loss and dust that settles over beds and lawns. That soil profile compacts fast, so a heavy mulch layer matters more here than in wetter climates, helping retain what little water falls between November and March. Folks out toward Shafter and Wasco dealing with open fields and wind exposure often need coarser bark or stone to keep material from blowing off exposed beds.