MSN: Why Your Tomato Plant Leaves Are Turning Yellow—and How to Fix It, According to Experts Why Your Tomato Plant Leaves Are Turning Yellow—and How to Fix It, According to Experts The older leaves are turning yellow on my tomato plant in a large pot. Also my hanging baskets are looking a little off-color and are losing leaves. What do you think is causing this?

Understanding the Context

It sounds like ... Q. Last year my tomato leaves yellowed following the heavy rains. I harvested some fruit but the plants died.

Key Insights

The same thing is happening this year. After the rains, the leaves on the lower part of ... You’re standing in your garden, staring at a tomato plant with yellowing leaves. Is it too much water? Not enough?

Final Thoughts

A disease? Instead of guessing — or calling your local University of Idaho Extension ... Q. I have been a home gardener since 1976. This year, almost all of my 13 tomato plants have yellow leaves. It does not seem to matter whether the plant came from seeds, was bought or was a volunteer ...

Q. We have several tomato plants that are doing quite well, but some have yellowing leaves or yellow spots on the leaves near the ground. Do we have a problem? G.B., Houston A.