How To Prune Tomato Plants

how to prune tomato plants

How Do You Prune Tomato Plants?

  1. Identify the Suckers: Suckers are the small shoots that grow in the leaf axils, the space between the main stem and the branches. These suckers will eventually grow into full-sized branches if left alone.
  2. Remove Lower Leaves: Start by removing the lower leaves and branches that are close to the ground. These leaves are more susceptible to soil-borne diseases and pests.
  3. Pinch Off Suckers: Using your fingers or a pair of sterilized scissors, pinch off the suckers when they are small (about 2-4 inches long). This is best done early in the morning when the plant is hydrated and less stressed.
  4. Prune Regularly: Check your plants weekly to remove any new suckers. Consistency is key to keeping your tomato plants healthy and productive.

How to Trim Tomato Plants to Get More Fruit

  1. Focus on the Main Stem: Determine if your tomato variety is determinate or indeterminate. Determinate tomatoes grow to a certain size and set all their fruit at once, while indeterminate tomatoes grow and produce fruit continuously. For indeterminate varieties, focus on maintaining a single or double main stem.
  2. Remove Suckers for Indeterminate Varieties: By removing the suckers, you direct the plant’s energy towards producing fruit on the main stems. This leads to larger and more abundant tomatoes.
  3. Top the Plant Late in the Season: About a month before the first expected frost, cut off the top of the main stem. This process, known as “topping,” stops the plant from growing taller and encourages it to ripen existing fruit.

Best Way to Prune Tomato Plants

  1. Use Clean Tools: Always use clean and sterilized tools to avoid transmitting diseases. You can use rubbing alcohol or a bleach solution to disinfect your pruning shears.
  2. Prune on Dry Days: Pruning on dry days reduces the risk of disease spreading. Wet foliage can easily transfer fungal spores and bacteria.
  3. Leave Enough Leaves: While pruning, ensure that you leave enough foliage to protect the fruit from sunscald. Leaves provide necessary shade and help in photosynthesis.
  4. Prune Determinate Varieties Lightly: For determinate varieties, prune lightly as they do not grow continuously. Removing too many leaves can reduce the overall yield.

Benefits of Pruning Tomato Plants

  1. Improved Air Circulation: Pruning allows better airflow through the plant, reducing humidity and the risk of fungal diseases such as blight and powdery mildew.
  2. Reduced Disease Risk: By removing lower leaves and suckers, you minimize contact with the soil, thereby reducing the likelihood of soil-borne diseases.
  3. Enhanced Fruit Quality: Pruning directs the plant’s energy towards fruit production rather than excess foliage growth. This results in larger, juicier tomatoes.
  4. Easier Harvesting: A well-pruned plant is easier to manage and harvest from. You can easily see and access the fruit, which simplifies the picking process.
  5. Stronger Plants: Pruning encourages stronger and more resilient plants. By focusing growth on fewer stems, the plant becomes sturdier and less likely to break under the weight of the fruit.

Happy Tomato Gardening!