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Tomato training as a way to increase crop yields

Trellis netting is used for tomato training to reduce pathogens and fill the fruits more than with raffia twine.

The importance of tomato training is as good as the planting itself. This is because an untrained tomato plant is likely not to survive the perils of growing into the production stage. It is necessary to ensure a proper growth of your tomatoes due to their exposure to infections, animal pests, insects, harsh weather and other conditions available enough to stop every tomato plant.

Untrained tomato plant not survive.

An untrained tomato plant is more subject to pathogens and the perils of growing into the production stage.

Tomato training is a legal means to harvest big and juicy fruits at the harvest stage. It will also grant you easy access to your garden apart from allowing you have a view of all your tomato plants swiftly. It’s important to note that the training method to be adopted is chosen before the planting. It could be caging, staking or trellises each with its unique benefits and challenges.

Materials required for tomato training

  • Twine

  • 8 feet long 1 x 1 – inch stakes

  • Pruners

  • Antiseptic cleaner

Training tomatoes inside a greenhouse, using the double wall of netting method of trellising.

Training tomatoes inside a greenhouse, using the double wall of netting method of trellising.


Steps to training your tomatoes

  1. Peg in your wooden or metallic stakes at about 6 foot deep with an interval of about 15 inches between each stake in rows. Tomato plants without an established height require about 25 inches intervals between the plants.

  2. Beside each stake, plant your tomato seedling at a space of about 3 inches and allow the tomato plants to grow to a height of about 15 inches

  3. Using the twine, tie each tomato stem loosely to the stakes

  4. Remove all shoots and suckers between the leaf and the stems. Well developed ones may be removed by pulling the shoot backwards while the small ones can easily be removed using your index finger or thumb. It’s true that these suckers are capable of producing fruits but growing at the bottom of your tomato plants has a lot of disadvantages since the fruits would be very close to the ground. Poor air circulation and too much moisture from your irrigation make them prone to diseases.

  5. In your tomato training, let the strongest sucker below the first truss be groomed into main stems while other suckers are pinched off completely.

  6. You may consider adding addition stake for more support to the second stem of the plants

  7. Monitor and guide the vine to their respective stakes each time they grow one foot taller

  8. Check on the plants every week, at least once and nip off developing suckers to stop any additional stem in the future. Too many stems diverse the plant energy to the production of flora for more support instead of fruit production.

  9. Remove every tip growing from each main shoot once the plants reach the top of the stakes. This will prevent the formation of more fruits that would not have enough time to mature.

a row long picture of how the double wall of netting is placed for tomato training inside a greenhouse.

A row long picture of how the double wall of netting is placed to train tomatoes inside a greenhouse. Tomato training is easy with HORTOMALLAS



  • Avoid planting your tomatoes in a garden where tomatoes, peppers or eggplants were previously planted. At least two years gap need to be observed before planting again.

  • Tomato training is not required for determinate tomato plants

Training indeterminate tomatoes with netting inside a greenhouse is done guiding the plant diagonally.

Tomatoes grown with trellis netting by HORTOMALLAS will not choke on the peduncle. Training indeterminate tomatoes with netting inside a greenhouse is done guiding the plant diagonally.


Safety measures

Do not prune leaves that shade fruits if you suddenly expose the plants to bright sunlight in a hot and dry weather. This can cause them to develop light brown patches.

Hortomallas Hortomallas

HORTOMALLAS manufactures and markets crop support nettings (trellising and tutoring as alternatives to the raffia twine labor intensive traditional system) that increase crop quality. Our Mission is to: INCREASE VEGETABLE CROP YIELD AND PROFITABILITY TO ALL THOSE VEGETABLES THAT NEED TUTORING AND SUPPORT USING NETTING INSTEAD OF RAFFIA. Since 1994 we help professional growers and farmers improve their cucumber, tomatoes, melon, zucchini, bean, chile, peppers crops where trellises and supports are needed. HORTOMALLAS is the ideal system for cucurbitacea and solonacea to improve their phytosanitary conditions, while increasing the solar exposure and the brix degrees. Besides the obvious labor costs savings, the use of HORTOMALLAS increases the life span of the plant, allowing longer periods of harvests and of a greater quality. Call us, our crop specialists will help you with specialized attention in the Americas and the Iberian Peninsula!

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