How To Trellis Tomatoes: A Step-By-Step Guide

Tomato Trellis using four towers and horizontal poles between them to
Tomato Trellis using four towers and horizontal poles between them to from

Tomatoes are one of the most popular crops in home gardens due to their versatility and delicious flavor. Trellising tomatoes is an effective way to maximize space, promote airflow, and prevent diseases. In this article, we will provide a step-by-step guide on how to trellis tomatoes, along with some tips and tricks to ensure a successful harvest.

Step 1: Choose the Right Trellis System

There are various trellis systems available, and the choice depends on the tomato variety and personal preference. Here are some popular options:

  • Cage: This is the simplest and most common trellis system for tomatoes. It consists of a wire or plastic cage that supports the plant as it grows. Cages are suitable for determinate tomato varieties that don’t require extensive support.
  • Stakes: Staking involves driving a wooden or metal stake into the ground and tying the tomato plant to it as it grows. Stakes are ideal for indeterminate tomato varieties that can grow very tall.
  • Trellis netting: Trellis netting is a versatile option that can be attached to stakes or a frame. It provides a vertical support system for the tomato plants to climb.

Step 2: Prepare the Soil

Before planting your tomato seedlings, it’s important to prepare the soil properly. Tomatoes thrive in well-draining soil enriched with organic matter. Here’s what you need to do:

  1. Loosen the soil using a garden fork or tiller to ensure good drainage.
  2. Amend the soil with compost or well-rotted manure to provide essential nutrients.
  3. Add a balanced organic fertilizer to promote healthy growth.

Step 3: Plant the Tomato Seedlings

Once the soil is prepared, it’s time to plant the tomato seedlings. Follow these steps:

  1. Dig a hole slightly deeper than the root ball of the seedling.
  2. Place the seedling in the hole, ensuring that the top few leaves are above ground.
  3. Backfill the hole with soil and gently press it down to eliminate air pockets.
  4. Water the seedlings thoroughly to settle the soil around the roots.

Step 4: Install the Trellis System

Once the tomato seedlings are in the ground, it’s time to install the trellis system. Here’s how:

  1. If using a cage, simply place it over the seedling, ensuring that the cage is tall enough to support the plant as it grows.
  2. For stakes, drive them into the ground at least 6 inches deep and about 2 feet apart. Tie the main stem of the tomato plant to the stake using soft twine or plant ties.
  3. If using trellis netting, attach it to stakes or a frame behind the tomato plants. As the plants grow, gently weave the stems through the netting for support.

Step 5: Prune and Train the Tomato Plants

To ensure optimal growth and fruit production, it’s important to prune and train the tomato plants as they grow. Here are some tips:

  • Remove the suckers – the small shoots that develop in the leaf axils – to promote airflow and prevent overcrowding.
  • Pinch off the top of indeterminate tomato plants once they reach the desired height. This encourages the plant to put its energy into fruit production rather than excessive vegetative growth.
  • Regularly tie the main stem to the trellis or stake to keep it upright and prevent it from bending or breaking.

Step 6: Provide Proper Care and Maintenance

Tomatoes require regular care and maintenance to thrive. Here are some important tasks:

  • Water the plants deeply and consistently, aiming for at least 1 inch of water per week. Avoid overwatering, as it can lead to root rot and other diseases.
  • Mulch around the base of the plants to conserve moisture and suppress weeds.
  • Fertilize the plants every 4-6 weeks with a balanced organic fertilizer to provide essential nutrients.
  • Monitor the plants for pests and diseases, and take appropriate action if necessary.


Trellising tomatoes is a great way to optimize space, promote airflow, and prevent diseases. By choosing the right trellis system, preparing the soil, planting the seedlings properly, installing the trellis system, pruning and training the plants, and providing proper care and maintenance, you can ensure a bountiful tomato harvest. So get started on trellising your tomatoes and enjoy the benefits of healthy and productive plants!

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