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Hyacinth Plant

Q.Tomato Leaves on One Plant Are Turning Yellow

Anonymous added on June 13, 2011 | Answered

I have one tomato plant in each of my two raised bed gardens that the leaves have begun to turn bright yellow. Different varieties of tomatoes. The plants beside it look fine. These are spaced at 3′ apart. I have watered consistently. I did check the nitrogen levels at one of the yellowing plants and it was low. But I did not have time to check the other. I have never had a nitrogen problem before. I am fertilizing this year with Bonnies Plants fertilizer (in the little green jug) and fish emulsion.

I am at a point that I may just pull these two up and trash them for fear of this spreading. Any ideas on what this could be? If it is nitrogen, what is a good liquid fertilizer with high nitrogen content? A friend suggested Miracle Gro, but I would think the Bonnies Plants fertilizer would be similiar.

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Certified GKH Gardening Expert
Answered on June 14, 2011

It does sound like chlorosis, which is an iron deficiency, either caused by too little iron or too little nitrogen (which prevents iron uptake). The Bonnies should help, but you may want to consider replacing the plants as they may be stunted due to the lack early in growing.

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