Answer: Yellowing leaves and poor growth can indicate a need for feeding; non-flowering might indicate a need for more sunshine. In general, citrus trees grow best in frost-free areas of the garden, in full sunshine, in well-draining soils. They like moist but not soggy soil and regular feeding for best fruit production. There are specially formulated citrus tree fertilizers - apply in amounts and with the frequency as recommended on the fertilizer label and your trees should perk up. Most lemon trees are capable of flowering and setting fruit by the third year after they've been planted. Hope this answers all your questions!
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