Answer: Citrus trees do not go into dormancy the way other trees do, so I think keeping your tree in the garage over the winter months may be stressing it too much. Meyer lemon trees flower in the winter, providing they get adequate warmth, light and moisture. I think your tree is trying to produce but can't quite get enough energy to maintain health, grow, and develop fruit. Instead of parking your tree in the garage over the winter months, take it inside where it can enjoy warm air, lots of light and plenty of moisture. It should respond by developing lots and flowers and fruits.
Your Meyer lemon is self-pollinating. When the pollen is ripe, it automtically drops down onto the stigma. You can hedge your bet by gently shaking the tree after the flowers open fully, or by playing bee and gently dusting the inside of each flower with a small, soft brush. Some years citrus trees produce lots of fruit and other years they don't. It's nothing to worry about. Enjoy your lemons!
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