Tomato plant owners are being encouraged to add a common kitchen scrap item to the soil to enhance fruit production. Banana skins, often discarded or composted, serve as an excellent natural fertiliser rich in potassium and other essential nutrients.
Why Banana Peels Work
Plants require substantial nutrients to flourish, but soil often lacks what is needed. Tomatoes are particularly demanding feeders, making fertilisers vital. Organic fertilisers that break down slowly improve soil quality. Key nutrients include nitrogen, phosphorus, and potassium (N-P-K). Banana peels are increasingly popular due to their high potassium content and availability.
Gardening enthusiast Caitlin, known as Tomato Queen Garden Tips on TikTok, demonstrates how to use banana skins to grow superior cherry tomatoes. Her technique works for all tomato varieties.
DIY Banana Peel Fertiliser
Caitlin shows a jar of banana peel water, stating, "If you want the best tomatoes, you need what's in this jar because it's going to make your tomatoes grow like crazy." Banana water is a homemade liquid feed made by infusing water with banana skins. It adds potassium to plants and soil, aiding photosynthesis, water and nutrient transport, flowering, fruit development, and stem strength. Banana peels also contain calcium, manganese, sodium, magnesium, and sulphur.
To make banana peel water, fill a large jar with water, add a banana peel, and refrigerate for one week. Then pour the mixture around the base of the tomato plant to help it thrive and produce fruit.
Alternatives
Composting banana peels may offer more immediate benefits. For a liquid fertiliser, consider compost tea: soak mature compost in water to extract nutrients and beneficial microorganisms.



