Answer: If only the older (lower) leaves are yellowing, it might not be reason for concern and the best treatment may be to simply pinch off the affected leaves. Tomato plants tend to drop their oldest (the lowest) leaves. As long as the rest of your plant looks healthy, everything should be fine with your plant. However, if other leaves are yellowing, it may indicate a problem. Yellowing leaves on tomato plants can be caused by a variety of things, including transplant shock, over- or underwatering, and lack of nitrogen. Tomatoes like rich, moist soil that has plenty of organic matter and drains well. They are also moisture sensitive and need a regular supply of water to thrive and produce fruit. Just continue to give your tomato plant good care and it should flower and develop fruit. Enjoy!
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