Growing Green Onions in Water Indoors is the perfect way to make your Green Onions really last!

Be sure to also check out these tips for How to Grow Rosemary from Cuttings and How to Grow Basil From Cuttings!

Green onions in a jar of water.

Growing Green Onions in Water

Did you know… you can REGROW your green onions from the store at home?

Once you know about growing green onions in water indoors, you’ll never run out again!

Regrowing your onions is really SO easy! I have some in a jar by my kitchen window, and the rest out in my backyard Garden, and they just keep producing more and more!

When it comes to green onions, the more the better, right? They add such a nice punch of flavor to Salsa, make a gorgeous garnish, and and are a must have on Taco Tuesday.

So that’s why I was thrilled to learn how to always have green onions on hand at home.

Knowing how to regrow green onions from scraps is such a simple, frugal trick… I know you’re going to love this!

Here’s what you need to do…

Related: Genius Kitchen Tips and Tricks

Green onions in a jar of water.

Awhile back, a friend had told me that once you’ve used your green onions, you can pop the ends back in the water.

Strange, I thought… but what would it hurt to try?!?

How Do You Regrow Green Onions?

It’s simple! You’ll just need…

  • 1 Bunch of Green Onions
  • 1 Small Jar or Glass
  • Water
  • Bright or Sunny Windowsill

Here’s how it works…

Off to the grocery store I went, to buy a little bunch of green onions…

Bunch of green onions on a table.

It just so happened to be taco night, so choppity-chop-chop-chop I went…

Green onions with the green parts sliced off.

Now down to the little stubbies, I just popped them in a jar of water.

Yes, you could use a little glass too, but you know how wildly in love with mason jars I am! 😉

Then I placed my jar in my kitchen’s bright, sunny windowsill.

The key is to change out the water every day to keep them happy and fresh.

Green onion ends in a jar of water.

After about a week or so, look what had happened. Whoa!

Green onions in a jar of water.

Several days went by, and they just kept on growing!

Green onions in a jar of water.

So every time I was in need of some green onions ~ to add to my Easy Salsa Recipe or garnish my Crockpot Apricot Chicken with, I simply grabbed from my jar and started chopping!

Then the weirdest thing happened… they started growing AGAIN!

I think I grew about 3 rounds of green onions off one 50 cent bundle.

Not bad! 😉

Can You Regrow Green Onions in Soil?

Why yes… yes, you can!

If you want to have fresh green onions even longer, you’ll eventually want to transition them to soil!

After the 3rd time of regrowing my green onions in water, they seemed to be losing a bit of flavor, so I took the old stubs and planted some in a pot inside and planted the others out in the backyard.

They had developed a great root system sitting in water for those weeks, and started growing like crazy again in the soil!

Now I have some handy inside and outside at all times! And when I’ve need more, I’ve just grabbed another 50c bundle from the store, and started the whole process over again!

These are the potted ones I keep indoors near my sunny kitchen window…

Green onions growing in a pot.

And here are some more I have growing out in my backyard next to my Romaine Lettuce…

Green onions in a garden with other vegetables.

Growing Green Onions Reviews

What Your Frugal Friends Are Saying About This Trick…

T writes: “When you use green onions or leeks, stick the part with the roots that you cut off and throw away in the ground or container. They will grow and eventually seed themselves too. Cut the ends off as needed and they will keep growing. Your garbage becomes food!”

Janet writes:I do this all the time. It grows back pretty fast too”

Melanie writes: “I have some growing right now”

Rosemary writes: “Yesss I do this all the time! You can do it with leeks too!”

Patti writes: “I am growing mine like crazy! Doing the same thing with Romaine lettuce, too”

Kati writes: “I have some going on my dinner table & replanted a few, too!”

Elizabeth writes: “Ours started in a glass and then we planted them in dirt. Just cut them off as needed and they regrow!”

Shirley writes: “It’s true and they keep on going and going. Outside I just pushed them inside the dirt and they grew and they’ve been growing since. I cut them and they grow again I must have cut them 10 times already.”

Rebecca writes: “I love doing this. You can do this with larger onions too and cut off the tops to use like chives to add to dishes. I’m actually doing this with red onions right now. I had one I used half of, then it went bad. Stuck it in water. Had three sprouts that are now planted in a large pot and growing happily.”

More Ways to Preserve Produce

So now that you know all about growing green onions in water and outside in your garden, I’ve got even more Genius Kitchen Tips and Tricks that I know you’re gonna love.

Make your food last so much longer when you try some of these simple tricks…

How to Keep Basil Fresh

Make your fresh basil last longer when you use this simple trick for how to keep basil fresh for up to one week!

Fresh basil set in a jar.

How to Keep Lettuce Fresh

Save money on your fresh salads when you use this easy tip for how to keep Lettuce Fresh longer!

Decorative animal next to lettuce.

How to Store Potatoes Long Term

Are you wondering How to Store Potatoes Long Term? These simple little potato storage tricks work like a charm!

Potatoes in a basket.

How to Keep Celery Fresh

Keep your Celery fresh and crisp with this simple tip that is sure to save you money!

Bundle of celery.

How to Keep Cilantro Fresh

Keeping Cilantro Fresh really couldn’t be easier, and this method I’m going to share with you is the only way I store it.

Bunch of cilantro in a tall glass.

How to Keep Strawberries Fresh

With this easy little trick, you’ll never need to toss out your favorite berries again!

Strawberries in a green colander.

How to Keep Bananas Fresh

Trust me, you’ll be using these tips for How to Keep Bananas Fresh from now on!

Person holding a partially-peeled banana.

Fruit and Veggie Wash

Before you use your Fruits and Veggies, be sure to try this trick!

Fruits and veggies on display at a market.

How to Grow Rosemary from Cuttings

Growing your own rosemary is such a smart way to save money, while also enjoying an abundant supply of herbs.

Rosemary cuttings in a jar of water.

How to Grow Sage from Cuttings in Water

No more trips to the grocery store every time you need to pick up some Sage! Now you’ll know How to Grow Sage from Cuttings in Water!

Sage cuttings in a jar of water.

How to Grow Basil From Cuttings

Expand your basil garden this year with this simple trick for How to Grow Basil From Cuttings!

Basil plants on a wooden surface.

Sweet Potato Slips (How to Grow Sweet Potatoes at Home!)

Did you know it’s actually really easy to grow your own sweet potatoes at home? All you’ll need are some Sweet Potato Slips to get started!

Sweet potatoes with toothpicks in jars of water.

55 Easy Gardening Tips for Beginners (+ Pro Tricks)

You’ll find out what works best and exactly what to avoid when growing your favorite fruits, veggies, and flowers this year!

Flowers in pots outside.

What to Put in a Compost Bin (Composting 101)

Knowing what to put in a compost bin is the first step to creating your own amazing compost for your home garden!

Vegetable trimmings in a pail.

So have you tried Growing Green Onions in Water Indoors yet? 

Or have you planted some in soil out in your garden or indoors?

Leave a comment and share…

Green onions with text \"Growing Green Onions...Again & Again!\"

About Heidi Miller

Heidi Miller is the creator of The Frugal Girls, where she shares easy recipes with massive flavor! She has been creating and sharing recipes online for over 15 years, and brings warmth, expertise, and a personal touch to every recipe. Her work has been featured on Today.com, NBC, Fox, Parade, People, Country Living, Woman’s World, and more!

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25 Comments

  1. Erin says:

    I’ve done this with lettuce, but now I have more ideas.thank you!

  2. karla says:

    I’m also confused on the regrowing green onions. I always use the white part too. Do I use just some of it and put the remaining part in water?

    1. Heidi says:

      Hi Karla ~ yes… leave some of the white and the roots remaining, place in water, and watch them grow! Enjoy! 😉

  3. Tedda Cooper says:

    I have grown pineapple several times by cutting off the bottom about an inch up and planting it root side down. It takes about 3 years before you get a pineapple, but it was delicious!

  4. Ruby Henley says:

    Thanks for the tip. This will save me money.

  5. Patricia says:

    I’m going to do the green onion thing also! And celery. I know you can make a nice potted plant out of a pineapple top,by slicing off the top and keeping it in a saucer or shallow bowl of water, but it has never worked for me. I’d be glad to hear from anyone who has suggestions…I love the idea of keeping veggies alive. This is my first visit to this site, and I’m really glad I stumbled into it. 🙂

    1. Brenda says:

      I’ve grown pineapple plants from pineapple tops many times. I use a pot of miracle grow potting soil, not water. I cut the pineapple about an inch down and then make a hole in the center of the soil, put the top in soil, cover completely, leave the green leaves out of course 😊. It loves lots of water, especially while it is establishing it’s root system. So plenty of water and sunshine. I’ve heard after four years you actually get a pineapple. we got a freeze here in Florida this year and I was away and didn’t get to bring mine indoors and lost them. I’ll try again, they grow fast in the right conditions. Some say to take the pineapple meat and rind off before planting, I don’t, it seems like it fertilizes the soil. Hope you try and succeed.

    2. Gloria says:

      I’ve had pineapples growing in my yard for years. I just cut the top off about an inch down, set it where I want it to grow, and it always does. I have sandy soil here in FL and rarely water them. They love sun. Pineapples are very easy to grow. My only problem is beating the possums to them. PS. I’ve also grown regular onions from planting the roots from the scraps. I cut those about a 1/2″ up or so. They like sun too, and watering.

  6. Linda Woodhead says:

    Keeping cilantro in water helps keep it fresh

  7. Marie says:

    This is so cool! I do the same thing with celery!

    1. Heidi says:

      Wow ~ I didn’t realize it worked with celery, too! I’ll definitely give that a try as well. Thanks for sharing, Marie! 😉

      1. Laura says:

        With celery cut the bottom off leaving about an inch. Put the piece in a shallow dish of water so that the piece is submerged about half way up in the water. The outer stalks will harden over but you will begin to notice the inner leaves beginning to grow after a week or two. Change the water every other day or so. Plant in the garden or in a container on the window sill and it will regrow.

  8. Sarah says:

    I used to do this, but then I decided to plan them outside in a dirt patch outside my kitchen and they have been growing like crazy and never lose flavor! Love that I can cut off what I need whenever I need it!

  9. Leslie Hoyer says:

    I have green onions in a jar on my kitchen window seal right now. Just like yours. Pretty nifty

  10. Amanda says:

    I did this too but first only because they were wilted from being in the fridge. Wen they rooted, I stuck them in a container with soil. I now have three containers of green onions outside in my garden.. They multiply like crazy… And some of them are really tall too!! I had to change the water a couple times I think, kept them in the kitchen window until ready to transplant…