Answer: Premature fruit drop is almost always from incorrect environment or cultural care. Too much water is one cause. Low humidity is another. It's important that your tree gets at least 6 hours of sunlight a day and that the soil is moist but not soggy wet. Citrus trees always set more blossoms than they develop into fruit. It's a natural thinning process. Of those blossoms that it can support, many drop due to lack of pollination (insect activity). A three year old tree may only be able to fully develop 4-5 lemons. As the tree matures, it will become much more productive. Since Meyer Lemon trees bloom several times a year you still have a chance of getting some fruit this year. Try feeding your tree to help the leaves green up and to make it vigorous enough to fully develop the fruit it sets.
Best wishes with your lemon tree!
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