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What can one do with organic, uncooked food scrap that would just go into the compost – if you have one? You can make veggie broth with them, or donate it to community gardens if you don’t have a compost, but besides of that, there’s just composting. But you can save some of the vegetable and fruit scraps going into to compost: by using them to regrow a whole new plant!
How to Regrow vegetables From Scraps
An easy and rewarding way to enjoy fresh produce while reducing food waste. Depending on the vegetable you want to grow, indoor regrowing will produce small amounts of new edibles for you. The bigger purpose is the regrowing process is having fun – for me, because I can involve the kids and teach them how food is being produced – with experimental gardening while reducing food waste. It’s a great way to understand how plants grow. Regrowing plants from food scraps takes you to the whole new level of getting closer to zero waste. Reduce waste, save money, and start to build self-sufficiency, especially if you have a garden.
Here’s 10 Vegetable Scraps that will regrow that can be used for this and what to do with them to regrow:
Potatoes
Use any chunky sections of potato peel or pieces of potato with the ‘eye’ (the beginning of the shoots) on them can be replanted to grow new potato plants. Leave the potato scraps to dry out slightly overnight and plant them in the soil with the “eyes” facing up in exactly the same way that you would plant seed potatoes.
Leeks and salad onions
Salad onions, leeks and scallions can be regrown the same way: you will need the green parts for this. Place the greens in a cup or jar filled with water. Put it on a windowsill and change the water every other day. In about a week, you should have a new plant!
Lettuce
After you’ve cut the leaves off the lettuce, put the crown head in water. Within just two days the crown will sprout new leaves and after just under a week, a small bunch of lettuce leaves will emerge. Just as simple as it sounds!
Garlic
You’ll need to save one garlic clove to produce an entire bulb for you – in a couple of months. Choose a clove with an intact base and plant it in soil, pointed side up. Keep it in a sunny location and water regularly.
Beetroot
Cut the top off a beet, which you’d do as you prepare it for cooking. Rinse the beet top, then place it in a shallow dish of water. (You can also plant the beet top in soil for a longer harvest.) Little shoots will appear within several days.
Celery
For this, you’ll need the stump you’d chop off before cooking anyway. Leave its base intact, you’ll need about 5 cm of it. Place the stump in a bowl, with cut side up, and add enough water for the base to sit in it. Soon, small white roots will appear and new leaves will emerge. Keep the bowl on a sunny windowsill.
Cabbage
Cabbage can be easily regrown from its base. Place the bottom core in a shallow water dish. New leaves will begin to emerge from the center within a few days. At that time or a few days after you can transplant the cabbage into the soil once the roots develop. While it won’t grow into a full head, the new leaves are perfect for soups and stir-fries.
Onions
You will need the onion bottom with all the roots still intact. Allow to dry for a few hours to a couple days in a shaded, well-ventilated area to allow for callousing. Place it in a starter pot in a sunny location and cover the top with soil. Make sure to keep the soil moist by watering when needed.
Ginger
Plant a small chunk off of your piece of ginger in potting soil with the newest buds facing up. Ginger enjoys non-direct sunlight in a warm moist environment. Once the plant is established and you’re ready to harvest, pull up the whole plant, including the roots.
Sweet Potatoes
Not quite like potatoes: you’ll need a little more than just skins. A section of the whole sweet potato needed: a few inches cut off the whole sweet potato. Place the section in water until it sprouts. Once sprouted and they have grown into a few inches long, remove them and plant them in soil. It will take quite a few months and will need watering of course, but they will develop into new sweet potatoes. This method allows you to grow multiple plants from a single sweet potato.
Top Tips When Regrowing Veg from Scraps:
- use organic produce if possible
- wash them very well
- check the water every day and change it every 3-4 days as it will start to stink
What do you think of these 10 Vegetable Scraps that will regrow?




11 comments
What a fascinating post! I had no idea I could grow all of these things. I only have a small courtyard garden so will be trying a few if these out in pots- thank you!
Wow! I never would have known! Thank you for sharing!
No way, I had no idea about lots of these, especially ginger! Thanks for the tips!
I’ve been growing peppers from pepper seeds and can’t wait to hopefully start onions! Will bookmark these for another date though!
– Hannah
I had no idea you could regrow a lettuce! I might have to try a few of these vegetables in our garden.
Oh I so want to try this with the kids!
I’ve got a little regrowing station on my kitchen window sill! You’ve given me some more ideas though, so thank you!
It’s great isn’t it that you can do this. I’ve been meaning to experiment with the kids for a while but haven’t manged to yet. We were supposed to grow tomato seeds but I think it’s too late now.
We’ve been growing a lot recently but have been hoping to do more. We always have vegetable scraps so I am certainly going to try growing some stuff from scraps with the kids!
everyone should use this methods… Great tips
Brilliant tips, I didn’t realise it was so easy to grow things from scraps. I’m going to use them for sure!!