If you have some onion peel left over, don’t rush to get out the garbage bag – it might come in handy around the house.
As compost
Onion skins contain a lot of nutrients and minerals that will definitely benefit the soil, improving its health, fertility and structure.
You can also use onion peels to control weeds in the garden – they have this ability due to the sulfur compounds they contain, which suppress the growth of harmful plants.
It is worth remembering 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 peel is as a plant fertilizer, as it contains nitrogen, phosphorus, sulfur and microelements: calcium, magnesium, manganese, zinc, iron, copper and boron.
The "skin" left over from onions also helps enrich the soil by providing organic matter that improves aeration, drainage and soil structure.
