If you have onion peels left over, don»t rush to get out the garbage bag – they can come in handy around the house.
As compost
Onion peels contain many nutrients and minerals – they will certainly benefit the soil, improving its health, fertility and structure.
You can also use onion peels to deal with weeds in the garden – they have this ability due to the sulfur compounds they contain, which suppress the growth of harmful plants.
Don’t forget that onion peels decompose quickly. This means that they can be used as mulch in the garden. What at first glance seems like waste helps enrich the soil, retain moisture and stimulate plant growth.
As a fertilizer
Another option for using onion peels is as a plant fertilizer, as it contains nitrogen, phosphorus, sulfur and trace elements: calcium, magnesium, manganese, zinc, iron, copper and boron.
The ‘peel’ left over from onions also helps enrich the soil due to the presence of organic matter that improves aeration, drainage and soil structure.
