Avocadoes are classified into three types: Mexican, Guatemalan,
and West Indian. Some avocados are a cross. Each has unique characteristics. The Mexican type is most cold hardy, has paper-thin
skinned fruit, takes the fewest months to mature (5-6) and has the smallest of fruit which are green to black. Guatemalan
is less cold hardy, has thick woody-tissue skinned fruit, takes the longest time to mature (10-15 months) and has medium-sized
fruit that is green to red. West Indian is the least cold-hardy, is fairly quick to mature (5-8 months), has leathery-skinned
fruit that are green to red.
avocados are self fruitful. Except for the Mexican varieties where isolated trees usually bear well, most avocados
will have increased yields if types A and B are planted together. Flowers of Type A are receptive to pollen in the morning
but don't release their pollen until the afternoon of the next day. Flowers of Type B are receptive to pollen in the afternoon
but do not release their pollen until the next morning. Solitary trees with their decreased yields usually produce more than
enough for a family.
Specific varieties are recommended for Florida, California, and Hawaii. The chart below lists
some of the more popular Florida varieties.