This happened to me! In my case, it was a lack of nutrients in a potted tomato plant, so adding a fertilizer with nitrogen should help a lot. Or, if you have compost, make some compost "tea" by putting some of your compost in a container, adding water to "steep" just like a tea bag, and pouring off the nutrient-rich water into your tomato plants. Good luck and happy tomatoes!
I definitely agree with the lack of nutrients comment! But also keep in mind that plants, in an effort to keep themselves healthy and growing, will sometimes naturally shed lower leaves by letting them yellow and fall off. There can also be another culprit called "burning up" the plant by providing too much nutrition. So be careful! Good luck and happy gardening!
Tomato plants are prone to blight, which causes the leaves to turn yellow and fall off. The blight also sometimes causes spots on tomatoes themselves. This is hard to prevent and some gardens seem to be prone to it. But there are a few things you can do to minimize it: remove the diseased leaves right away and dispose of them in the trash; do not compost your tomato plants at the end of the season, burn them or throw them in the trash; rotate your crops so tomatoes are not back in the same spot in the garden for at least three years; water with a soaker hose to avoid getting the leaves wet; and keep a heavy layer of mulch (straw or newspaper works well) around the bottom of the plants. Some tomato varieties seem to fare better than others against the blight, so you also should look for resistant varieties if this is a recurring problem for you.
by dcook792 8 years ago
my leaves are turning yellow on my tomato plant
by Sherri 8 years ago
Do you have any experience with your tomato plants being devoured starting about 12 inches off the ground, and at the same time, any unripened tomatoes being eaten, even if they were 1 inch from the ground? Some marauder came into my garden last night and ate 17 of 19 set tomatoes on one plant. And...
by Glensie J D 3 years ago
Why is my fortune plant (lucky bamboo) turning yellow? Is it dying?I have had this plant on my work desk for months now (since November) and I noticed that one of the three stalks is turning yellow. Help? Is this normal or is there anything I need to to at least bring back its normal green colour?
by Peeples 3 years ago
What to do when your tomato plants outgrow their cages?HELP!! My cherry tomato plant measured at 7 ft 4 inches 2 days ago. They are several feet over the cage. The cage has began to fall over and the whole top of the plant has now fallen over. They are against the house in a garden. We have...
by Donna Cosmato 6 years ago
What are the most common tomato diseases and how can you avoid them to have a bumper crop?
by Joseph Attard 7 years ago
Why are we here? Only to grow, mature, shrivel and die like a tomato plant?I believe there IS a reason for our existence. What do you Hubbers think?
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