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.
Table of Contents
Onion Peel Benefits For Plants
According to balconygardenweb.com 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.

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.
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.
ALSO READ: HOW TO MAKE BANANA PEEL FERTILIZER
FAQ
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.
Nice concept
Thanks!
Hi Aditya,
Thank you for your article on onion peel fertilizer,
I have several lime seedlings that I grew from meyer sour lemon and they are about 3 to 6” tall now but not have grown further for the last 45 days, what do you think is the problem?
Regards,
Mo
Beaverton Oregon
Hi,
Meyer lemon generally grows up to 6 to 10 feet high within a period of 2 to 3 years, so it grows moderately, however the growth slows down with the onset of winter and then gradually increase growing rapidly with the onset of spring. You should use a nitrogen rich fertilizer such as tea leaf compost to fertilize your lemon plant thrice in a year to promote good growth. Avoid using phosphorus and potassium rich fertilizers in lemon plant during early days. Look for abnormal signs such as yellowing of leaves or curling, if they are present, treat them as soon as possible.
Kindly let me know if you need more assistance, have a great day!
Hello,
Your post is beneficial & valuable. can u further guide on pots without drainage for indoor desktop plants, maintenance & potting mix. neem khali, neem powder, sand, stone powder etc for best results for indoor garden.
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?
Regards,
Prabhu Reddy.
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!
Hello Aditya
Can we use onion peel water in flowering plants in summer season also
Thanks
Yes, we can add onion peel water in every season. Unlike mustard cake fertilizer, it does not harm plant roots in summer.
Hello Aditya
Can we use onion peel water for all indoor plant?
It is mainly beneficial for fruiting and flowering plants however it can be used for fertilizing houseplants along with nitrogen rich fertilizers such as neem cake or tea leaf compost. Moreover, try to use in dried form for houseplants.
I hope this will help!
I have a question. I live next to a farm field where they just harvested 100 acres of onions. After a windstorm I now have 12″ layer of onion peels covering my 5 acre property. Any concerns?
DEAR ADIYTA,
YOUR THIS ARTICLE IS VERY INFORMATIVE AND EASILY UNDERSTANDABLE. GARDENING IS MY HOBBY.I AM ALWAYS IN SEARCH OF SUCH LIKE,,DESI TIPS,,FOR THE IMPROVEMENT OF DOMESTIC GARDENING. PLEASE KEEP IN VIEW THE COMMON HOUSE WIVES OR COMMON FOLK WHILE ADVACING YOUR DIRECTIONS TO BE FOLLOWED BY COMMON STARTA. WE CAN FULLFILL OUR DAILY VEGETABLES NEEDS BY GROWING THESE VEGETABLES AT HOME AND THUS SAVE THE MONEY AND THERE BY BY BRINGING THE PRICES DOWN IN THE MARKET BY MAKING THE DIFFERENCE BETWEEN SUPPLY AND DEMAND.