growing a tomato plant #130537 - Ask Extension

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growing a tomato plant #130537

Asked May 29, 2013, 11:26 AM EDT

I recently planted a beautiful Bonnie tomato plant, and in watching it grow, I discovered that it now has a few yellow leaves coming on the plant.
I was told not to water it tooo much....and I have done this.
Is this normal for the leaves to turn yellow or do I need to do something?
Appreciate your help.

Galveston County Texas

Expert Response

Dear Gardener,

Thank you for contacting Bonnie Plants. Yellowing on the older leaves is commonly from a nitrogen deficiency which can be the result of overwatering. Most vegetables only need an inch to an inch and a half of water a week from either rainfall or irrigation. If in a container, water them when the top inch and a half or so of potting soil becomes dry to the touch. It is best to water in the morning at the base of the plant, keeping the foliage dry, to prevent some disease problems. Mulching around plants helps conserve moisture, keep weeds down, and prevent some disease problems by preventing splashing up onto the leaves.
William Sherrer Replied June 11, 2013, 4:06 PM EDT

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