How to Grow Green Onions in Water Using a Plastic Egg Carton

 

Welcome to my blog, Enthusiast Gardener!

We are thrilled to have you join us today, as we embark on an engaging exploration into a delightful and straightforward method for cultivating green onions right in the comfort of your own home, utilizing just water. This approach is not only accessible but also highly rewarding, making it an ideal choice for individuals across all experience levels—from seasoned green thumbs to beginners testing the waters of gardening. By following this method, you’ll be able to enjoy fresh, flavorful, and nutritious green onions grown right on your kitchen windowsill.

let’s  get growing!

{tocify} $title={Table of Contents}

🌱 Step 1: Choose the Right Onion Bulbs

Start by selecting fresh green onion bulbs. You want ones that are firm, white at the base, and show no signs of damage or rot. Healthy bulbs give you the best shot at strong, consistent regrowth.

🛒 SHOP 🛒

💧 Step 2: Prep Your Container

1. Grab a clean container—glass works best so you can watch the roots grow—and fill it with fresh water.
2.  Leave about two inches of space from the top to allow airflow and avoid overflow.

🥚 Step 3: Add the Plastic Egg Carton

Now take a clean plastic egg carton (make sure it’s washed thoroughly) and place it gently on top of the container. The egg carton acts as a platform to hold each onion upright and stable during early growth. Very important: The bottom of the carton must touch the water. This ensures the onion bulbs can absorb the moisture needed to sprout healthy roots.

✂️ Step 4: Trim and Place Your Bulbs

Carefully cut the top of each onion bulb. This encourages new shoots to grow. Then, gently place each bulb in one of the egg carton slots, root-side down.

 Make sure they sit upright, and their bases make contact with the water below. Space them out so they can breathe and grow without crowding.

☀️ Step 5: Provide Light and Maintenance

Place your setup on a sunny windowsill—a spot that gets about 4 to 6 hours of sunlight daily is ideal. Change the water every 2 to 3 days to prevent bacterial growth and keep everything fresh.

Before you know it, you’ll start to see roots forming below and bright green shoots stretching toward the sun above!

🧅 The Joy of Endless Green Onions

And that’s it—your personal, low-effort green onion farm! 🌱 Simply snip off the greens when you need them and leave the base behind. It will keep growing again and again.

If you enjoyed this article, please give it a thumbs up, leave a comment, and share it with your gardening friends!

Let’s keep growing together—one green onion at a time!

Watch: How to Grow Green Onions in Water Using a Plastic Egg Carton!

🍃 Want to Grow Your Own Green Onions!

🛒 SHOP 🛒

✅ 100 White Onion Bulbs for Planting, Onion Sets Fresh Bulbs Seeds for Growing ✅ Super Sweet Candy Onion Sets (Bulbs) Seeds - 1/2 Pound - Variable Set Sizes ✅ Red Onion Sets (100 Bulbs) Garden Vegetable ✅ 8 Ounces Yellow Onion Sets Sweet Onions Bulb Seed Set Perennial Garden Vegetable Green Plant Bulbs Seeds Permaculture

✅Non-GMO Onion Sets, 8 oz, Red, White, Yellow Mix, 60+ Bulbs, Home Garden Assortment, Planting Guide Included, Stargazer Perennials

🛒 Shop Onion Bulbs Now! 🛒

Like This: Pin it for Later!

🌿 Green Onion Water Growing – FAQs & Answers

Q: Can green onions really grow in just water?

A: Yes! Green onions are one of the easiest vegetables to regrow in water. As long as the base of the bulb touches the water, they’ll sprout new roots and shoots within days.

Q: Do I need soil at any point?

A: No, not unless you want to transplant them later. They’ll continue to grow in water for multiple harvests.

Q: What kind of container should I use?

A: A clear glass or plastic container is ideal, so you can monitor water levels and root growth easily.

Q: Why use a plastic egg carton?

A: The egg carton acts as a support to keep the onions upright and ensures their bases stay in contact with the water for proper root development.

Q: Does the egg carton need to touch the water?

A: Yes! The bottom of the egg carton must touch the water so the onion bulbs stay moist and begin rooting.

Q: How often should I change the water?

A: Every 2–3 days to prevent bacteria buildup and keep the water fresh and oxygenated.

Q: How much sunlight do green onions need?

A: Place them where they’ll receive 4–6 hours of sunlight daily, such as a bright windowsill.

Q: How long does it take for green onions to regrow?

A: You’ll typically see new green shoots within 3 to 5 days.

Q: Can I use old or wilted green onion bulbs?

A: It’s best to use fresh bulbs with intact bases for the best regrowth results.

Q: Should I trim the top green parts before regrowing?

A: Yes, trimming helps stimulate the bulb to push out fresh, new growth.

Affiliate Disclosure!

This website is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon. Some of the links to products on this site are affiliate links. These are products that I've used or recommend based from homesteading experience. I do make a small commission (at no extra cost to you) from these sales. {alertInfo}