California, Hawaii, Puerto Rico, and Florida
During the summer, prune lightly to shape the tree. Remove weak, diseased, or dead twigs and branches. Thin the fruits only if there is danger of branch breakage from excessive weight.
Use a garden soil that''s high in organic material.
Water deeply and thoroughly when the soil is barely moist.
Fertilize with plant food formulated for avocados.
Avocados do not soften on the tree, so it is difficult to tell when the fruit is ripe. Purple or dark varieties are usually mature when the fruit starts to darken. When fruits of green varieties begin to mature, the bright green color diminishes, a yellow tinge appears on the skin and stem, the fruit becomes smoother, and small corky areas may appear on the skin. The seed coat will turn brown and papery. When picking, cut the stem as close to the fruit as -possible without injury.