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You are here: Home / Fruits & Vegetables / Growing Vegetables / Should I cut dead leaves off my tomato plant?

Should I cut dead leaves off my tomato plant?

14 Comments

yellow leaves on tomato plant

QUESTION: Should I cut dead leaves off my tomato plant? I’m not sure if they are hurting the plant or keeping it from making more tomatoes.

ANSWER: Whether it is worthwhile to trim dead leaves off your tomato plant really depends on what type of tomato plant you are growing: determinate or indeterminate, also known as bush or vine tomatoes. Here’s the difference between determinate and indeterminate.

Determinate (or bush) tomato varieties will bloom out once and set fruit depending on how many flowers appear, so there is in essence a set number of tomatoes determinate plants will produce that cannot be changed by pruning, for the most part. With determinate varieties, you may wish to prune dead or yellowing foliage below the first set of flowers on the plant.

tomato plant with dead leaves

You can also remove this first level of “suckers,” which grow from the bend where a branch meets the main stem, as long as they’re below the first flower clusters. It is recommended to prune indeterminate tomato varieties more heavily, however, as these plants can set fruit more than once during the growing season, and pruning dead leaves or unproductive foliage away can help encourage indeterminate plants to focus on the development of fruit instead.

If you are growing an indeterminate (vine) type of tomato plant, begin pruning when the foliage underneath the first set of flowers on the plant begins to turn yellow. This usually happens when plants are 12 to 18 inches tall. In addition to dead or yellowing leaves, remove the “suckers” that grow from the crook where a branch meets the main stem of the plant as long as they grow below the first flower cluster.

Later in the season, you may choose to remove suckers growing higher up as well, but be careful not to remove leaves that shade fruits or suckers that have grown especially large, as they can leave damaging wounds. With indeterminate plants, some gardeners recommend also pruning to leave only four or five fruit-bearing branches so that the fruit your plants grow is as large and healthy as possible.

dead leaves tomato plant with text overlay should i cut dead leaves off my tomato plant

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Filed Under: Growing Vegetables, Tomatoes

Comments

  1. [email protected] says

    April 8, 2020 at 9:17 am

    You answered a lot of my questions.

    Reply
  2. Amanda says

    July 17, 2020 at 11:05 am

    Are beefmasters determinate or indeterminate? Thanks

    Reply
    • Hamish Stewart says

      January 26, 2021 at 9:41 pm

      Beefmaster tomato plants are indeterminate (vining) tomatoes. This means that they prefer lots of staking and pruning of tomato suckers as they grow vertically.

      Reply
  3. Mark says

    July 25, 2020 at 10:21 pm

    What if I cut the leaves branches off ( about ten ) on each big tomatoes better boy … they were doing good but I am a novice and was stupid and cut the leave branches that were growing outward and downward even high up to be able to see into the center of the plant … I thought that was what I was suppose to cut ( actually thought that was the suckers ) I was wrong . I did most of this in 2 days and it’s still got nice sized tomatoes starting to ripen …. will they still ripen or do you think my plant will die ? I had just started getting a couple nice red tomatoes when I screwed up . I wish I had left it alone .

    Reply
    • Nick says

      September 9, 2020 at 1:15 pm

      What happened to the tomato plant? Did it turn out okay? I made the same mistake.

      Reply
  4. MAUREEN MCKEONMENDOSA says

    July 31, 2020 at 11:53 am

    we have tomatoes cucks and a few other veggies in our green house all have grown to a great height Cuck have flowers tomatoes have no flowers or any sign of fruit I am wondering if it is too hot for them ? watering seems ok but what would cause brown leaves ? this is our first time with the green house should we put a fan in there to see if that will help thank you Maureen

    Reply
    • Trevor says

      September 8, 2020 at 8:54 pm

      A fan will always help move air and let plants breathe. How big a difference does it make? Idk

      Reply
    • Cristie says

      May 2, 2021 at 7:44 pm

      From what I understand tomatoes need to be pollinated at the same time everyday. Fans aren’t powerful enough to pollinate tomatoes either. You can do it by hand but this is the reason I decided not to put them in my greenhouse.

      Reply
  5. Kathy says

    May 14, 2021 at 1:35 pm

    My tomatoes are dropping blossoms. :-(. Why?

    Reply
  6. charlotte a walters says

    June 20, 2021 at 12:00 pm

    Some of the leaves on my tomatoes are turning yellow at the bottom of the plant- how do I know if it is a disease and is there an organic treatment? I need help thanks

    Reply
    • Jaymccee says

      July 15, 2021 at 11:37 am

      Leaves on tomato plants will turn yellow and even die. It’s an automatic process and doesn’t harm the fruit. As long as your plant is getting sunlight and water and flowering its fine with yellowing leaves. Water until it runs freely through the bottom of the pot daily to get big juicy tomatoes.

      Reply
    • Tania Hunnicutt says

      July 17, 2021 at 6:38 pm

      I have Same question ⁉️

      Reply
  7. Nora says

    July 17, 2021 at 2:48 am

    Either to much water are not enough water or not enough nutrients.

    Reply
  8. Frank Queen Sr says

    August 22, 2021 at 3:49 pm

    What causes tomatoe leafs curl up would .

    Reply

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