How to Fix Soil for Rotten-Bottom Tomatoes

Blossom-end rot is a tomato disorder caused by an imbalance of calcium. This imbalance has a number of causes, including too much or too little water, high-nitrogen fertilizer and damaged roots. The major symptom of the disorder is a black spot, or rot, at the blossom end of the tomato on the vine. According to the experts with the University of Arkansas, as few as 30 minutes of water stress can result in blossom-end rot.

Things You'll Need

Calcium soil drench
Watering can or bucket

Measuring cup

Instructions

- 1
  Add the calcium soil drench product to the watering apparatus, such as a watering can or bucket. The size of the apparatus depends upon how many plants require treatment. Mix in the required amount of water, listed on the package directions.
- 2
  Use a rake or your hands to pull back any mulch from around the base of the tomato plant.
- 3
  Drench the soil around the tomato plant, ensuring saturation to a depth of 6 inches or the depth listed on the product's label. Pour the solution slowly, so that it doesn't run through the soil too quickly.
- 4
  Repeat the application throughout the growing season, according to the schedule listed on the package.

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Comparison of the Growth of a Tomato Plant & a Pepper Plant

Growing Tomatoes