Fruit production requires a lot of energy, which plants get from the sun. If your tomato plants don't get enough light, you should move them. Too little water: Tomatoes need a lot of water. Too little water results in poor fruit development.
The last factor to consider is soil fertility. Do your tomato plants get the nutrition they need to grow thick, tasty fruits? Even if you have rich soil, from the moment the first flowers appear, you should feed your tomatoes with an organic fertilizer high in potassium or potash. Potash helps promote flower initiation and, therefore, production. What if your tomato plants have many flowers, have no visible health problems, but do not have fruits? If you're having trouble keeping tomato plants from bearing fruit, heat is likely to blame.
Keep plants healthy so they can weather the heat wave and help prevent this problem by growing thermoset varieties. Wondering how to make tomato plants produce more fruit? When tomato plants begin to produce flowers, they begin the fruiting growth stage. This is due to the plant's built-in goal of reproducing. It all starts with healthy seedlings, planting in the right conditions and caring for tomato plants in the right way.
Large-fruited varieties, such as Mortgage Lifter, will only produce an average of six tomatoes per plant throughout the season, that's all. If you're growing your own tomatoes from seed, make sure to plant them in pots often so that the roots continue to grow normally. Cold nights (constantly below 55 degrees Fahrenheit) or periods of heat (days constantly around 90 degrees and nights constantly above 75 degrees) force the tomato plant to abandon fruit production and simply focus on survival. Low nighttime temperatures below 13°C (55°F) can also prevent pollination and cause flowers to fall on tomatoes.
Also be sure to check out our Tomato page for more information on planting, growing, and caring for tomato plants. If tomato seedlings have already attached to the roots when you are planting, gently pry the bottom of the roots apart to loosen them and encourage them to start growing rather than curling up. To avoid moisture stress when temperatures get too high, keep plants well watered with deepwater tomato plants at least once a week, and preferably every morning before each hot and windy day. This is best done on vine tomatoes, since pruning shrub tomatoes can reduce their yield, but even they can benefit from careful removal of lower leaves that are close to the ground.
When I asked gardening expert and commercial nursery owner Emme Nicols why tomatoes don't bloom, she said, “Too much nitrogen. In early summer, you can still have cold spells and, if you take the time to protect your tomatoes from cold temperatures and wind, it can go a long way in giving them a boost in the garden. Dry soil conditions or excessive wind can cause water stress on plants, which is detrimental to good fruiting and causing flowers to fall on tomato plants. Fruiting vegetables, such as tomatoes, require six to eight hours of sunlight per day to thrive and produce fruit.
The combination of water stress and high temperatures creates very challenging environmental conditions for tomatoes to bear fruit.