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Tomato Plants Not Producing Fruit |
| By Ellen Brown |
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Question: I planted tomatoes from seeds in May. The plants have lots of blossoms but there is only one green tomato on only one of the 7 plants. Is there something that I should do to stimulate the plants? Thanks for your suggestions.
Hardiness Zone: 7a
Josie from Tulsa, Oklahoma
Answer: Josie,
Most tomatoes take anywhere from 30-60 days to mature from seed, and several environmental factors can affect their ability to set fruit. Heat is one those factors. Once daytime temperatures reach into the 90's and nighttime temperatures hover near the mid 70's, tomato plants have trouble setting fruit because high temperatures render the pollen sterile. There are a couple of strategies to combat this problem. The first is to grow varieties that mature earlier, before the Oklahoma summer heat sets in. Smaller tomato varieties (e.g. cherry) usually need less time to mature, while larger tomato varieties take longer. The smaller varieties are also more likely to set fruit better in hot weather. You could also buy established seedlings or start yours indoors several weeks before transplanting in order to give them a jump on the season. If your plants still haven't set fruit by the time the intense heat sets in, try to keep your plants healthy and consistently watered and once the temperatures drop, they should resume setting fruit. Other factors that prevent tomatoes from setting fruit include low temperatures (below 50ºF), a lack of sunlight (less than 8-10 hours), inconsistent watering, damage from pests (e.g. thrips), or too much nitrogen fertilizer.
Ellen
About The Author: Ellen Brown is our Green Living and Gardening Expert. Click here to ask Ellen a question! Ellen Brown is an environmental writer and photographer and the owner of Sustainable Media, an environmental media company that specializes in helping businesses and organizations promote eco-friendly products and services. Contact her on the web at http://www.sustainable-media.com
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RE: Tomato Plants Not Producing Fruit
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Post By la (Guest Post)
(07/12/2008)
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I'm in middle Georgia and have about 10 tomato plants of different varieties and I don't have one mature tomato on any of them. Oh, I'll get one and then it starts getting deformed, or it gets eaten up by worms or something, or it just mysteriously falls off. I can't figure out the problem. Got lots of flowers and some tomatoes, but they don't seem to mature...the just sit there! I water every morning and they get lots of sun, but maybe it's too much. The leaves seem fine, the stalk is strong. I dunno. I fertilize once a month maybe. When the tomato scare came out I thought I was sitting pretty with my little garden, but I haven't gotten anything I can even eat yet.
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RE: Tomato Plants Not Producing Fruit
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Post By Shelia (Guest Post)
(06/26/2008)
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I live in North Alabama and planted several varieties. The Romas are loaded with tomatoes, but the beefsteaks and early girls are "struggling". Frustrated?
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RE: Tomato Plants Not Producing Fruit
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Post By Jesse (Guest Post)
(06/26/2008)
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I had a year where my tomato plants were beautiful, very large and healthy looking but no fruit. I was told to water them with apple juice. It worked! I had loads of tomatoes by the end of the month.
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RE: Tomato Plants Not Producing Fruit
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Post By Ron (Guest Post)
(06/01/2008)
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I have had standard indeterminate tomatoes produce two years in a row. They were grown in a greenhouse and continued to produce from about 70 days on. The second summer production declined some. Te evaporative cooler to keep it cooled (Arizona and 120 degree temperatures) failed at the end of August and finally cooked off the plants. But my experience plus the tomato tree at Disneyworld's' Epcot Center proves that tomatoes can be perennials. The Epcot tree also hold's the world record for tomato production supplying tomatoes to Disneyworld restaurants for many years. It is also the world's largest tomato plant.
In reality, most annuals are only limited to a single year's growth by cold, usually freezing weather that kills them off. Given continued warm temperatures they will continue nicely. I believe most tomato plants will die with the 3rd or 4th year though. The Epcot tomato tree comes from a graft from a similar but smaller tomato tree in China. Hydrophonic greenhouse growing made it even bigger and hardier.
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RE: Tomato Plants Not Producing Fruit
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Post By Ron (Guest Post)
(06/01/2008)
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I am in Southwestern Oregon and have 46 surviving tomato plants in my garden. Three are big plants started from plants from a local nursery. The rest are from Burpee, Gurney and Parks. The three bought locally are all producing blooms and with the help of blossom set each has 2 to 6 tomatoes forming. The rest of the tomato plants are pretty stagnant and seem not to have grown at all in the past 30 days. Likewise, a bird as apparently trimmed four plants close to the ground.
Weather has been rain and day time temperatures of mid 60's to low 70's during the day and upper 40's to mid 50's at night. We did have a brief hot weather spike well into the 90's for 4 days. I'm surprised on the slow growth in my entire garden this year. Normally I have had tomatoes set in April. I have a few other tomato plants that I have started from seed. 3 weeks to sprout and a long ways from transplanting.
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RE: Tomato Plants Not Producing Fruit
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Post By Gayle (Guest Post)
(05/11/2007)
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I seem to be having the same problem down here in Atlanta, Georgia - no fruit on my tomatoes. My roomate's little plot with his tomato plants are fruiting, the only difference is that I applied store-bought composted manure to my garden as I was planting it - could that be the problem? and if so, is there anything I can do about it?
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RE: Tomato Plants Not Producing Fruit
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Post By Lynda (Guest Post)
(08/03/2006)
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Well, I actually caught a bird EATING the new growth off much of my plant one day. That explains why there are no more blooms. I remember that "Blossom Set" worked well years ago. My plants are actually in a sort of "hole" downhill from the apple tree about 4 feet away, so I may have foolishly planted my whole tiny new garden patch just too close to the 8 yr. old Apple tree. I'll keep trying different places. The plant actually grew out some new green growth after I added egg shells to the soil around it. I have had NO other pests because I also remembered to plant Basil about 6 in. from the plant. Companion planting works really well for us but it still produced poorly because of the stress of the heat. I can water deeply in the early morning, the plant really perks up, but by 3 pm and hot sun, the leaves are wilting. I MIGHT consider transplanting it into the shade this week to try to salvege and extend it's growing season by planting it deeper still. Hope I don't kill it, then again it wouldn't be a great loss under the circumstances! lol
One of the best gardens I ever saw was under a HUGE old tree, protecting it from the hottest hours, but the soil had to have been enriched and required extra water/fertlizer.
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RE: Tomato Plants Not Producing Fruit
Thanks for your tips and explanations on my tomato plants. Today, I saw another green tomato, now I have 2!! Josie
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RE: Tomato Plants Not Producing Fruit
I live within an hour of you. I always either buy established plants or start mine indoors earlier so I can set plants out by the beginning of May. The plants must have enough time to mature, bud and set fruit before the heat of our summer sets in. It gets extremely hot here in the summer, and tomatoes will flower, but not set fruit in the heat of our summers. My tomatoes are usually finished by the end of July or the first of August. If your plants survive our summer--about half of mine routinely die even though I set mine out early, water, and mulch them--they will flower and set tomatoes later in the season after it cools. These tomatoes won't quite be ready before our first freeze, but you can pick them green and allow them to ripen on their own.
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RE: Tomato Plants Not Producing Fruit
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Post By carla bledsoe (Guest Post)
(08/03/2006)
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i'm not too far away from you map wise-sw missouri- and i planted seed directly in the garden in may also and i have a lot of tomatoes. so i don't think its too soon. are they in the shade at all? i've had them bloom but not produce when i planted on the north side of a shed. the dry weather and heat we've had may slow them down some if you aren't watering all the time. i think i'd try the shock thing mentioned before.
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RE: Tomato Plants Not Producing Fruit
I have had this problem before. I was told to knock the tops of the tomatoes out. This puts them into shock and then they set on fruit. They are annuals, so they grow, fruit and die all in one year's time. There is no second year for them. From a KSU Master Gardener
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RE: Tomato Plants Not Producing Fruit
If you only planted them from seed in May, you are too early to expect ripe tomatoes. Give them a little more time. I planted my seeds on St. Patrick's Day (March 17th) and nurtured them indoors until the first week of May. I think I will harvest my first cherry tomato tomorrow or the next day. The large tomatoes are still hard green. I live in the high desert part of New Mexico.
As far as the comment about tomatoes not setting the first year, the second responder is correct--they are annuals and bear the first and only year. The second responder might be watering too much. If you do that you get a LOT of plant and not many tomatoes. Cut back on the watering some and expect a better harvest.
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RE: Tomato Plants Not Producing Fruit
Tomato plants are annuals though, unless there is a variety I am unaware of which will produce fruit in the second year???
I gave up after two years of growing numerous plants with no fruit so any suggestions would be appreciated from here :-)
Thanks! Jennifer Northern Virginia
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RE: Tomato Plants Not Producing Fruit
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Post By zz (Guest Post)
(08/01/2006)
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some tomatoes don't get the fruit in the very first year, and also climates + soil + environmental factors do affect alot.
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