Answer from NGA
March 31, 2010
|It's normal for the oldest leaves on a tomato plant to turn yellow and then die. As long as you see new growth at the top of the plant, the plant is okay. Overwatering can also cause the leaves to turn yellow so be sure to allow the soil to dry out slightly between waterings. The Miracle Gro should keep your plant healthy and green. I don't think there's much else you need to do other than to be careful with your watering. Hope you get some tomatoes on your plant soon!
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