Answer: You don't need to remove the lemons. If the tree is strong enough to grow them to maturity, you will be able to harvest them later in the year. Lemons take months to ripen and they will hang on the tree for months after they are fully ripe. The only way to tell if they're ripe is by tasting one. If one is ripe, the rest of the crop of the same size and age should be ripe, too. Sometimes they drop from the tree when they're ripe; sometimes they hang on the tree for months after they ripen. A taste test is the only sure way of determining the ripeness.
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