• Florida avocados are mostly grown in the southern part of the state.avocado image by Alex Karmanov from Fotolia.com
  
  The first avocado (Persea americana) tree was brought to Florida from South America in 1833, according to Florida State University. These trees are primarily grown in Miami-Dade and Collier counties in Florida, though the tree is present in limited numbers other counties. Classified as an evergreen, it comes in three main varieties and reaches a height of about 30 feet in maturity.
  
  

West Indian Avocado

• The West Indian avocado first came from the tropical lowlands of Mexico and Central America, and are the least tolerant of cold weather, though they have a high salt tolerance. The trees produce fruits that are somewhat watery in flavor, according to the Texas A&M University, and are primarily used as rootstocks. The tree blooms between February and March and produces fruit that weighs between 1 and 5 lbs., with a leathery-smooth skin texture.
  
  

Mexican Avocado

• Mexican avocado trees are the most cold-resistant of the three avocado varieties, though it is also the least salt tolerant, according to Texas A&M University. The fruits of the Mexican avocado rarely grow larger than 1 lb., and are very susceptible to disease because of their thin skin. The fruits ripen between June and October, with the tree in bloom in January and February.
  
  

Guatemalan Avocado

• The Guatemalan avocado is widely used to create hybrids with the other two varieties of avocado, and can be considered an intermediate between them. The tree originates in the tropical highlands of Central America, and produces fruit that weighs between 1/2 lb. to as much as 5 lbs. The tree blooms between March and April and produces ripe fruit between September and January. The Guatemalan-West Indian hybrid avocados produce most of the mid-season fruit in Florida.