I live in Green Cove Springs (northeast) FL and have 10 citrus trees - oranges, grapefruit, lemon, and tangerine. They are all ten-year-old plants. They get good water and I fertilize them three times a year with a citrus special, plus two doses of Ironite (compensating for the sandy soil). In December I prune them back and thin them in the center. They are sprayed as needed - no diseases or pests. HOWEVER, come late January when they should bloom, I get very few, if any blossoms. Does anyone have an idea what I am doing wrong? One exception to all this is the key lime - it blooms and produces profusely, and carries not a lot of leaves.