Kitchen waste to garden magic: Everyday scraps help soil health

Experts say many households throw away food scraps that could benefit plants. Items like banana peels, eggshells, and coffee grounds contain nutrients that support plant growth. Gardeners and environmental groups now encourage people to reuse such waste instead of sending it to landfills as organic waste can return to the soil and help plants grow.

Composting is one of the most common ways to reuse kitchen waste. In this process, organic materials such as fruit peels, vegetable scraps, and coffee grounds slowly break down. Over time, they form a dark and nutrient-rich material called compost, which improves soil quality as it helps soil hold moisture and allows plant roots to absorb nutrients more easily.

Eggshells are another useful material for gardeners as natural pest control. When crushed and spread around plants, they can help protect plants from pests like slugs and snails. These pests prefer smooth surfaces for movement, but the sharp edges of crushed eggshells make it difficult for them to crawl toward plants.

Used coffee grounds contain nitrogen, which is an important nutrient for plants. Nitrogen helps plants grow healthy leaves and supports soil microbes. Coffee grounds can be added to compost piles as they help speed up the breakdown of organic waste. Some gardeners also spread a thin layer of coffee grounds on soil to help retain moisture and reduce weed growth.

Banana peels contain nutrients such as potassium, phosphorus, and calcium. These nutrients help plants develop strong roots and support flowering. Gardeners often cut banana peels into small pieces and bury them near plant roots so the nutrients slowly mix with the soil. Citrus peels can be useful, too, as the oils in orange or lemon peels have a strong smell that many insects dislike; it thus becomes another natural pest control method.

Wood ash contains minerals and potassium that support flowering and fruit production. However, experts say it should be used in small amounts because it can raise soil pH levels. Another method is vermicomposting. This method uses worms to break down kitchen waste. The worms produce compost that is rich in nutrients and beneficial for soil.