Tomato plants don’t produce as much fruit (2024)

Q. Last year, my tomato plants didn’t produce as much fruit as in past years. Why is this and is there anything that I can do about it?

A. There can be several reasons to explain low fruit production:

• Sometimes flowers drop off the plant during periods of fluctuating temperatures. Temperatures above 90 degrees Fahrenheit during the day can cause the blossoms to drop without setting fruit. If evening temperatures fall below 55 degrees, remain above 75 degrees, or if the humidity is too high, blossoms can also drop prematurely.

• Tomatoes are pollinated by wind or insects. During extreme weather conditions, there can be low populations of insects, which will result in low fruit production.

• Shallow watering can stress and weaken tomato plants. Soil kept uniformly moist will promote the development of a large, healthy root system and will result in good fruit production.

• High nitrogen fertilization encourages vegetative growth and can inhibit flower production, resulting in poor fruit set. Low nitrogen produces spindly vines that cannot support proper plant development.

• Fungal problems, such as early blight and Septoria leaf spot, can also prevent high yields as well as high quality fruit, especially during seasons with periods of heavy rainfall. Gardeners may need to apply fungicide sprays if these diseases threaten to severely defoliate plants. Contact Plant Information Service at (847) 835-0972 or Click here to show mail address to request a list of approved fungicides.

Tomato plants don’t produce as much fruit (2024)

FAQs

Tomato plants don’t produce as much fruit? ›

If you have trouble with tomato plants not setting fruit, heat is likely to blame. Keep plants healthy to ride through the heat wave, and help prevent this problem by growing heat-set varieties. A soaker hose helps prevent diseases caused by overhead watering.

Why are my tomato plants not producing much fruit? ›

If you have trouble with tomato plants not setting fruit, heat is likely to blame. Keep plants healthy to ride through the heat wave, and help prevent this problem by growing heat-set varieties. A soaker hose helps prevent diseases caused by overhead watering.

What causes low tomato yield? ›

Low nitrogen produces spindly vines that cannot support proper plant development. Fungal problems, such as early blight and Septoria leaf spot, can also prevent high yields as well as high quality fruit, especially during seasons with periods of heavy rainfall.

What is the best fertilizer for tomatoes? ›

Some growers prefer to use a high-phosphorus fertilizer, indicated by a larger middle number. You can also keep things simple with a fertilizer especially formulated for tomatoes – usually with a ratio like 3-4-6 or 4-7-10. Most importantly, don't over-fertilize.

What can I feed my tomatoes to get more fruit? ›

Here's a simple recipe for side-dressing tomatoes: When fruit begins to develop, spread ½ cup of a 5-10-5 fertilizer around the base of a tomato plant. Gently work the fertilizer into the top inch of soil. Fertilize tomatoes again with a ½ cup of 5-10-5 when the first fruit is harvested.

What to do when tomato plants stop producing? ›

If your tomato plants have ceased production entirely, it's time to harvest any remaining fruit. Even if the fruits are small or slightly green, you can allow them to ripen indoors. Place them in a paper bag with a ripe banana or apple, as these fruits release ethylene gas that speeds up the ripening process.

How to get a high yield of tomatoes? ›

INCREASE TOMATO PRODUCTION
  1. SUNLIGHT, SUNLIGHT, SUNLIGHT. Tomato plants need 10+ hours a day of direct sunlight. ...
  2. DON'T OVER WATER. One of the biggest issues people face when gardening is over watering. ...
  3. SUPPORT THE PLANT. ...
  4. TRIM LOWER BRANCHES. ...
  5. PINCH THE SUCKERS. ...
  6. FERTILIZE AT THE RIGHT TIME. ...
  7. "TICKLE" THE BLOOMS.
Aug 5, 2021

How do I trim my tomato plants to produce more fruit? ›

Remove all leafy suckers beneath the first fruit cluster so they won't slow the development of the fruit. Suckers are the little shoots that form in the spot (called an axil) where the leaf stem attaches to the main growing stem. In northern regions, many gardeners go further, removing all suckers as they appear.

Why are my tomato plants growing tall but not producing? ›

Insufficient sunlight

The lack of adequate sunlight can result in the lack of fruiting. A fully grown tomato plant requires six to eight hours of daily sunlight to produce flowers and then fruits. Without proper sunlight, the tomato plant will have leggy and spindly growth and little or no fruits.

Why are my tomatoes so little? ›

3) high temperature stress will limit fruit size. This is very common in the hot, humid southeast, especially in May and June. 4) shading during the cloudier months prevents full development of fruit. Be sure the greenhouse does not get shaded by large trees or tall buildings.

Does pruning tomatoes reduce yield? ›

Pruning, or selectively removing some of the tomato plant growth, can improve harvestable yields and prolong the harvest season. Further, keeping tomato plants off the ground reduces common fungal diseases like early blight, Septoria leaf spot, and anthracnose, and improves fruit quality.

Is Miracle-Gro good for tomatoes? ›

Tomato plants have big appetites and need a steady supply of plant food to grow their best. Miracle-Gro® Performance Organic® Edibles Plant Nutrition Granules feeds both your plants and the beneficial microbes in the soil (which help plants take up all the nutrition they need) for up to 6 weeks.

Are coffee grounds good for tomato plants? ›

Coffee grounds contain around 2% nitrogen as well as varying amounts of phosphorus and potassium which are all very important for the growth of tomato plants. By mixing some coffee grounds into the soil below your tomato plants you're introducing these nutrients that the plants need to thrive.

Is 10-10-10 fertilizer good for tomato plants? ›

What is the best fertilizer for tomatoes? The best fertilizer for tomatoes comes down to preferences. Fish emulsion is a mild, nitrogen rich organic that can be used all season long. If only one type of formulated fertilizer is used, it's best to choose a balanced product such as NPK 10-10-10.

What triggers tomato fruiting? ›

A fully grown tomato plant requires six to eight hours of daily sunlight to produce flowers and then fruits. Without proper sunlight, the tomato plant will have leggy and spindly growth and little or no fruits. To produce tomatoes the plant requires energy which they receive from sunlight.

Does pruning tomato plants produce more fruit? ›

Pruning at the right time directs energy toward creating and ripening fruit instead of making more leaves. Overall, you will probably have fewer fruit on a pruned plant, but it will be bigger.

How to encourage tomatoes to flower? ›

Pruning for Light:

Properly pruning your tomato plants can help light penetrate to the lower parts of the plant, encouraging balanced growth and flowering. Removing some of the lower leaves can also improve air circulation, reducing the risk of disease.

How often should I water tomatoes? ›

Soil that contains a lot of sand doesn't hold water well and dries quickly. Because of this, tomato plants growing in sandy soil may need to be watered more often, about every three or four days. Clay soil, on the other hand, holds water well. Plants growing in clay soil usually only need to be watered once a week.

References

Top Articles
Latest Posts
Article information

Author: Chrissy Homenick

Last Updated:

Views: 5911

Rating: 4.3 / 5 (54 voted)

Reviews: 85% of readers found this page helpful

Author information

Name: Chrissy Homenick

Birthday: 2001-10-22

Address: 611 Kuhn Oval, Feltonbury, NY 02783-3818

Phone: +96619177651654

Job: Mining Representative

Hobby: amateur radio, Sculling, Knife making, Gardening, Watching movies, Gunsmithing, Video gaming

Introduction: My name is Chrissy Homenick, I am a tender, funny, determined, tender, glorious, fancy, enthusiastic person who loves writing and wants to share my knowledge and understanding with you.