How to make fertilizer using banana skins

Updated February 21, 2017

Bananas are one of the healthiest fruits in the world. They are high in vitamins B-6, C and potassium, and are known to promote healthy bones and kidneys, and have become the fourth most common fruit-bearing crop on earth. Bananas and their peels are also a useful and healthy food for plant life, which utilise many of the same nutrients and minerals that we do. Banana fertiliser is a green and chemical-free way to deliver important sustenance to your plants and crops. Making fertiliser from bananas and banana skins requires a bit of know how and very little effort.

Lay your organic banana peels skin-side down onto a flat baking tray or baking pan.

Roast your banana peels at 176 degrees C or allow them to roast as you cook other meals in the oven. Cook the peels until the become crispy but not burnt. Remove from the oven.

Break your banana peels into small pieces by hand. Place the banana peel into a sealed plastic container or glass jar for storage.

Scatter the banana peel pieces around your plants or mix into soil as fertiliser.

Slice your banana peels into small pieces and mix them in with the soil in your garden. The composting process will take place naturally and deliver the nutrients from your banana peels to your plants.

Place your cut up banana peels into a plastic container or glass jar and fill it with water. Cover and allow to ferment for several weeks. The resulting rotted mixture will be ideal fertiliser.

Blend your banana peel slices with water on a high setting. Use the resulting purée as liquid fertiliser in your garden.


Banana peels add several important nutrients to fertiliser including calcium, magnesium, sulphur, potassium, phosphates and sodium. Banana peels can be used as compost or fertiliser as-is but the nutrients they contain may be released more slowly and the benefits to your plants greatly reduced.

Things You'll Need

  • Bananas
  • Scissor
  • Plastic container
  • Glass jar
  • Baking tray
  • Oven
  • Water
  • Blender
Cite this Article A tool to create a citation to reference this article Cite this Article

About the Author

Robert Morello has an extensive travel, marketing and business background. He graduated with a Bachelor of Arts from Columbia University in 2002 and has worked in travel as a guide, corporate senior marketing and product manager and travel consultant/expert. Morello is a professional writer and adjunct professor of travel and tourism.