Avocados do not like wet or lowland areas. With our Florida limestone and sandy soils, avocados can have sufficient fruit production if maintained with a consistent and balanced fertilization routine. After the second year fertilization three to four times a year is sufficient. Make sure trees are sufficiently watered before and after fertilizing to prevent burn damage. Irrigation should be consistent during fruit set, production, and drought periods.
Avocado trees can suffer from iron deficiency under alkaline conditions.
This can be managed with timely applications of iron chelates formulated for such purposes. Avocados need special attention when first planted and through the first three winters. The most common reasons for an avocado tree to not perform well are freezing temperature and disease. The blanket or cloth must be secured at ground level to retain heat inside. Even as it matures, the tropical avocado will never be able to take unusually low temperatures.