This Indian kitchen waste is secretly the best fertiliser for terrace gardens

With the rising popularity of terrace gardening across Indian cities, many urban gardeners have come to realise that some of the best fertilisers may actually be sitting in their kitchen pantries. Rather than wasting money on artificial fertilisers, people are now using various household waste products to improve the quality of the soil naturally. Whether it is peels of fruits or vegetables or even tea leaves, there are numerous organic items in any kitchen that can help promote healthier growth in various plants. Not only do these organic items provide natural fertilisation for herbs, vegetables, and flowering plants, but they are also considered to be comparatively safer than artificial fertilisers. In fact, many expert gardeners agree that using organic waste can yield surprising results when utilised effectively. Here is a list of 6 such kitchen waste products that are often used by Indian gardeners as natural fertilisers.

One of the most commonly used household wastes for natural fertilization is the banana peel due to its rich content of potassium, phosphorus, and other minerals useful for plants. Many gardeners dry and grind banana peels into powder or extract liquid to make fertilizers from them. There are many flowering plants, such as rose, hibiscus, and jasmine, that reportedly grow healthier with the help of potassium-enriched fertilizers. While discarding them daily, most terrace gardeners prefer adding banana peels into the soil of the plants.

Another kitchen item that can be effectively used to fertilize plants is used tea leaves, which make the soil richer and healthier. By cleaning out excess sugar and milk from tea leaves, gardeners can easily mix them into compost or soil of plants. Used tea leaves also help keep the soil moist in scorching summers. Due to the widespread availability and constant usage of tea in many homes, it serves as a convenient fertilizing product for balcony/terrace gardens.

Rich in calcium that helps plants develop more effectively, eggshells can be added into soil as organic fertilizers. To ensure proper absorption of calcium into the soil, many gardeners choose to dry eggshells properly before mixing them in small quantities. Some plants such as tomato and chili reportedly respond well to calcium-based soil. Moreover, the crushed shells can work to prevent certain pests that infest plants within containers and raised beds.

Various kitchen vegetables, including peels of potatoes, carrots, cucumbers, and gourds serve as the key ingredient to make homemade composts. With gradual decay and decomposition, these organic materials provide nutrients to the soil. Nowadays, many city residents are maintaining small compost pits within their balconies and terraces for turning kitchen waste into organic fertilizers. It not only helps recycle kitchen waste but also supports sustainable urban gardening.

Leftover water from cooking rice is often used to nourish plants in many Indian homes as an effective fertilization method. Due to its rich composition of starch, rice water may help in promoting the growth of various types of plants. Many terrace gardeners prefer to use plain rice water as a fertilizer for leafy and herbaceous plants in their balcony gardens. However, experts generally discourage using salty/saucy rice water due to possible soil contamination.

Used coffee grounds are becoming an increasingly popular natural fertilizer among urban gardeners due to organic matter and moisture-retaining properties. Small amounts of coffee waste are often used by gardeners for mixing with compost or soil to enhance their nutrient content. However, coffee grounds should always be used moderately as excessive coffee grounds might cause negative effects on soil composition.

This article is for general informational and gardening awareness purposes only. The effectiveness of kitchen waste as fertiliser may vary depending on plant type, soil condition, climate, and usage methods. Improper use of organic waste, including excess quantities or non-composted materials, may sometimes attract pests, create odour, or affect plant health. Readers are advised to consult local horticulture experts, gardening professionals, or agricultural authorities before applying homemade fertilisers extensively in terrace or balcony gardens.