Looking for some tips on growing green onions from scraps? If you stick the white roots in water and leave by the window they’ll regrow! Keep reading for the full tutorial.
How To Grow Green Onions From Scraps
Learn to grow green onions from scraps, and never have to buy them, or let them go to waste again! Here are my best tips.
Never throw out the bottoms from onions, green onions, and scallions (my favorite..mmm).
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Once you’ve chopped some onions, green onions or scallions, you could regrow the bottoms and save some money!
The process is really simple. It takes almost no effort and you’ll have new, ready-for-harvest green onions in just a few days!
How To Grow Green Onions In Water
I use a mason jar but a cup would work just as well. It needs to be clear or transparent for light to get in. Vegetables grow through the process of photosynthesis. (I’m sure you’ve heard of this before. It’s when the plant converts light into energy and starches).
Drop the bottoms of your used green onions in the glass of de-chlorinated water. It is really important that the water has no chlorine in it, because if it has, it may stop roots from forming.
De-chlorinated water could be bottled water or water that has been standing uncovered for 24 hours. Today tap water has lots of iron, chemicals, chlorine, etc. So I strongly suggest not using water from the tap.
Once you’ve added your scraps to your clear jar, you should place the glass on a sunny windowsill. Then you wait!
Green onions and scallions should start to grow tiny roots in about a day. And onions will start growing roots in about 5 days.
After about 3 days, not only will the green onion and scallion’s roots be amazingly long, but also you’ll start to notice that it will become taller where you cut the bottom off! This is a good sign to either plant the green onion in soil, or let it grow in the cut until ready to eat again. The scallion or green onion should reach full size in about 1.5 weeks.
This process works well for starting the regrowth of all Alliums: onions, scallions, green onion, chives…
Onion and Scallion Tips
5 days after the roots on the onion have appeared, you will notice that some small sprouts will start growing out of the onion bottom and shoot up really fast. This is a good sign to plant the onion in soil. Unlike onions or scallions, these cannot grow in water. They must be regrown in soil—outdoors or inside.
So next time, dear homesteaders, save those leftovers! 🙂
Want to see it in action? Check out this video tutorial on how to grow onions from start to finish brought to you by Brandon & Meredith:
How is your green onion windowsill garden going? Share your photos and thoughts with us below in the comments!