Plan the perfect garden with our interactive tool →

Remedies for Black Spots on Pepper Plants

While most pest and disease problems that plague vegetables are treatable with some form of chemical or organic spray, black spot on pepper plants are caused from an environmental disorder. Subsequently, altering the growing area and conditions of a pepper plant will significantly lower the odds of black spot from affecting your pepper plants. Black spot is also sometimes referred to as bottom rot, but whatever you choose to call it, treat it quickly to avoid a complete outbreak.

Buid Up Calcium in the Soil

Amend the soil to alter the calcium deficiency. Add lime by sprinkling it to the base of the pepper plant to increase calcium content. (Lime is readily available at garden centers or nurseries.) Maintain a soil pH of 6.5 to help curb future outbreaks.

  • While most pest and disease problems that plague vegetables are treatable with some form of chemical or organic spray, black spot on pepper plants are caused from an environmental disorder.
  • Add lime by sprinkling it to the base of the pepper plant to increase calcium content.
  • (

Use Proper Watering Techniques

Water the plant thoroughly and evenly. Allow the roots to absorb the added calcium and transfer it to the pepper plant. Strive for even soil moisture during the day and night. (Additional watering may be necessary during the hotter parts of the day.) Provide 1 inch of water each week for proper development.

Mulch Pepper Plants

Mulch the area to help moderate soil temperature which will optimize root function, better enabling the pepper plant to absorb calcium. Use black polyethylene mulch in the spring and silver polyethylene mulch in the summer and fall. Apply a 1-to-2 inch layer of the material around the base of the plant.

  • Water the plant thoroughly and evenly.
  • Apply a 1-to-2 inch layer of the material around the base of the plant.

Related Articles

Lowest Temperatures for Pepper Plants
Lowest Temperatures for Pepper Plants
How to Feed Calcium to a Tomato Plant
How to Feed Calcium to a Tomato Plant
The Average Height of Vegetable Plants
The Average Height of Vegetable Plants
What Is Wrong If My Bell Peppers Are Rotting Before They Ripen?
What Is Wrong If My Bell Peppers Are Rotting Before...
Lime for Tomato Plants
Lime for Tomato Plants
How to Grow Banana Peppers in Florida
How to Grow Banana Peppers in Florida
Fungus on Basil Plants
Fungus on Basil Plants
How to Care for a Thai Pepper Plant
How to Care for a Thai Pepper Plant
Why Are My Eggplant Leaves Shriveling Up?
Why Are My Eggplant Leaves Shriveling Up?
Effects of Sodium Bicarbonate (Baking Soda) on Plant Growth
Effects of Sodium Bicarbonate (Baking Soda) on Plant...
How to Apply Lime to Tomato Plants
How to Apply Lime to Tomato Plants
Vegetables That Need Lime
Vegetables That Need Lime
My Pepper Plants Have Wrinkled Leaves
My Pepper Plants Have Wrinkled Leaves
Rust Disease on Tomato Plants
Rust Disease on Tomato Plants
What Is the Ideal Temperature for Staining Concrete?
What Is the Ideal Temperature for Staining Concrete?
How Many Gallons of Water Should a Full-Sized Tomato Plant Need Each Week?
How Many Gallons of Water Should a Full-Sized Tomato...
Brown Spots on Green Peppers in a Garden
Brown Spots on Green Peppers in a Garden
Tomato Plants & Sulphur
Tomato Plants & Sulphur
Garden Guides
×