This ultimate guide on onion peel fertilizer will help you to prepare and use onion peel fertilizer in your garden or farm. People of our beautiful world is rapidly shifting towards organic farming as well as gardening.

We are looking for various type of useful organic fertilizers for our plants. However, waste management is also an important topic. So after reading this article, you are definitely going to stop throwing onion peels in the waste dump.

Onion Peel Benefits For Plants

According to onion peel is a rich source of potassium. They are also rich in calcium, iron, magnesium, and copper. You can use onion peels for mulching as well as for preparing fertilizer.

Using onion peel as a fertilizer can also help you in zero budget organic gardening as well as farming. Instead of wasting them, you can utilize them wisely to make your plants healthy.

onion peel fertilizer,

How To Prepare Onion Peel Fertilizer?

To prepare this organic fertilizer, you will need to save onion peels that we commonly use in the kitchen. Either in a eco friendly bin or any bag, keep collecting peels daily. You can select a bowl or a plastic bottle with lid for preparing fertilizer.

You will need to add 3 to 4 handful of onion peels in one litres of water. Cover the opening of the container properly and leave it under shade for 24 hours during summers. But during winters, extend this duration to 48 hours.

However, if you keep it for 48 hours then it will be highly beneficial. Strain the water-onion mixture and keep the liquid portion. You can use the solid leftovers in making vermicompost. You can keep the liquid solution for 10 to 15 days.

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How To Use Onion Peels For Plants?

You can either use this organic liquid fertilizer along with irrigation water or in the form of spray. But, before applying dilute 100 to 200 ml of this liquid fertilizer in one litres of water. Apply according to the need of plant.

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As this fertilizer is rich in potassium, so it will mainly enhance branching, blooming, size, and quality of the fruit. You can apply once after every 7 to 10 days. Application of this liquid fertilizer also enhances disease and pest resistance of the plant.



Onion peel fertilizer is good for which plants?

You can use onion peel fertilizers at flowering phase of any plant that flowers, avoid adding this fertilizer during vegetative growth phase of the plants.

Author’s Note

I hope your now clear about preparation and usage of onion peel fertilizer. If you are facing any problems or have query regarding agriculture or gardening then leave your comment below. You can also connect with Agriculture Review on Facebook and Instagram.

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  1. Hi Aditya,

    Very nice to know that Onion peel is good for fertilizer. Thanks for the site.
    Do you know if the Sweet lime [Mosambi] peel can be used for any purpose like fertilizer or ayurvedic products?

    Prabhu Reddy.

    1. Hi,
      Yes Sweet lime peel can also be used in the garden, best way is to decompose mosambi peel before using. However as it is acidic so adding frequently should be avoided but you can always add peels in the compost bin. You can also spread pieces of mosambi peels around your plant to keep pests away.
      I hope this will help!

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