How to Regrow Veggies from Kitchen Scraps

Yes, You Can Grow Veggies from Your Scraps. No Green Thumb Required

Raise your hand if you've ever tossed green onion roots or celery ends in the trash, only to think… wait, can I grow this again?

Spoiler: YES. You totally can.

If you're like me and want to get the most out of your groceries (and maybe start a little windowsill jungle in the process), this post is for you. Regrowing veggies from kitchen scraps is:

Budget-friendly
Surprisingly easy
So satisfying to watch (your kids or partner might get into it too!)

Plus, there's something magical about giving those "useless" ends a second life.

Let's dive into the best veggies to regrow, what works, what doesn't, and how to do it without any special equipment.

The Best Veggies to Regrow from Scraps

Here's a list of kitchen favorites that regrow like champs:

Green Onions

What to save: The white root ends (about 1-2 inches)
How to regrow: Pop them in a glass of water, root-side down. Place on a sunny windowsill.
Time to grow: In just a few days, you'll see new shoots!
Bonus: You can snip them over and over again. Just change the water every couple of days.

Romaine Lettuce (and other leafy greens)

What to save: The bottom core (about 2-3 inches)
How to regrow: Place in a shallow bowl with a little water. New leaves will sprout from the center.
Time to grow: You'll see growth within 3-5 days. Best for harvesting young, tender leaves.

Garlic

What to save: A single clove (preferably sprouting a little)
How to regrow: Plant in soil, sprout side up, and water lightly. Keep near a sunny window.
Time to grow: Green garlic shoots will appear in about a week. (Use them like chives!)

Onion

What to save: The root end (1 inch thick)
How to regrow: Let it dry for a day, then place root-side down in moist soil.
Time to grow: In a few weeks, it can regrow into a full bulb or use it for green onion-style tops.

Leeks & Fennel

What to save: The root end (like green onions)
How to regrow: Just like green onions, into a glass of water on the windowsill.
Result: They regrow from the center and can be used again within a week or two.

Three glasses on a windowsill, each containing a romaine lettuce base in water, showing regrowth of fresh green leaves.

Step-by-Step: Regrowing Green Onions (The Easiest Starter)

If you're just getting started, green onions are the absolute easiest (and most satisfying!) veggie to regrow.

Here's how:

Use the top green parts in your cooking.
Keep the white bulbs with roots attached.
Place them root-side down in a small glass of water.
Set on a sunny windowsill.
Change the water every 2-3 days.
Snip the green tops once they regrow-usually within 5-7 days.

Repeat the process for weeks! It's like a veggie fountain.

Real Talk: What Doesn't Work Well

Not every veggie can be regrown easily at home. Here's what usually doesn't work:

Potatoes: You can sprout them, but they need a lot of space and time.
Tomato seeds: Tricky indoors and messy.
Avocado pits: Fun science project, but you'll wait years for fruit (if ever).
Cucumbers & zucchini: Too temperature-sensitive and don't regrow from scraps.

Stick to greens, roots, and bulbs for the best results!

Fun Ways to Use Your Regrown Veggies

You won't be replacing your grocery store just yet, but your regrown veggies are perfect for:

Garnishing meals (green onion tops on eggs or stir-fries)
Topping salads or soups
Snacking straight from your little indoor garden
Teaching kids about where food comes from

Recipe Ideas to Pair With Regrown Veggies

Here are a few recipes where those little veggie scraps can shine:

Asian Smacked Cucumber Salad - Perfect with regrown green onions or garlic tops
High Protein Chickpea Pasta Salad - Add extra fresh herbs or onion greens
Pineapple Cashew Fried Rice- The ultimate clean-out-the-fridge meal with bonus green onion power

Close-up of a cucumber salad topped with chopped herbs and sprinkled with sesame seeds.

Tips for Success

Use clean containers and fresh water to avoid mold
Once roots grow strong, you can transplant into a small pot with soil
A bright windowsill = the veggie regrowth sweet spot
Keep expectations realistic-this is more about fun + flavor than full-on farming

Try It This Week!

Next time you're chopping green onions or slicing celery, pause before you toss those ends. Pop them in a jar of water and give it a try. There's nothing to lose-except maybe your fear of gardening.

And if you're anything like me… you'll start naming them. ("Celery Sally" is thriving on my windowsill as we speak.)