In mild climates, try a Southern Highbush type such as ‘Sharpblue’. (Sunset climate zones 2-9, 14-17), or Rabbiteye blueberries (zones 8, 9, 14-24 ).
Blueberries have fine roots near the surface. Avoid cultivating the soil around them, and apply a 3- to 4-in. thick layer of mulch to conserve moisture.