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17 Plants You Grow from Kitchen Scraps
Kitchen Scraps & Growing Plants
growing indoor kitchen scraps
I love composting all the kitchen scraps I can but when I fill up my compost bin or run low on some vegetables in the garden using kitchen scraps to grow plants is a great activity. I love using kitchen scraps to start new plants as a fun gardening activity with my son, everyday we check and see how the plants are progressing. It's a great way to come full circle on produce we bout at the market together and cooked together. Starting your own plants from kitchen scraps is really easy and for a gardening nerd like me!
If You are going to attempt this I suggest making sure the scraps you start with are good quality, I like to use organic produce grown locally when I start plants from kitchen scraps.
Growing Leeks, Spring Onions, Scallions ,and Fennel
You could go out and buy some vegetable specifically for growing but I like to wait till I actually have a call for them in my cooking. With all 5 of these examples you will use the end of the vegetable with the white roots.
green onions from kitchen scraps
Take the left over white roots and place them in a container with a small amount of water in it. You want the roots to be wet but you don't want the entire thing submerged. Take your container and place it in a sunny window sill. I've actually grown green onion scraps in a fairly shady window on the north side of our house, your success may vary. I like keeping some in a window in the kitchen for my morning eggs, and in my office for snacking on (the wife loves kissing me after that). Within 3-5 days you will begin to see new growth come up. Remove the produce as you need and just leave the roots in the water to continually harvest your kitchen scrap crops. You should refresh the water weekly to keep the plant healthy.
Growing Lemongrass
lemon grass from kitchen scraps
Lemongrass is similar to all other grasses and because of that you just need to place the roots you cut off into a container with water and put in a sunny window. In my experience the lemongrass is a little more dependent than green onions and leeks from above.
After about a week there should be some new growth from your lemongrass. Once you have new growth you will need to transplant the plant from the water into a pot with soil and put it back into the sunny windowsill. You want to wait till your lemongrass reaches a foot tall before you begin harvesting it. Just like before cut off what you plan to use in the kitchen and allow the roots to continue to sprout. It's just like cutting your lawn, it will just keep coming on if you keep it healthy.
Growing Romaine Lettuce, Celery, Bok Choy & Cabbage
Just like the scallions, you will take the white roots of these vegetables to grow your produce. By cutting of the stalks or leafs with an inch or more and placing them into a bowl of water with the roots facing down you will be on your way. You want to make sure the roots are in water but you don't want to submerge the entire plant. Make sure to place the bowl into a sunny window and spritz it with water weekly to keep the top of the plant moist.
grow bok choy from kitchen scraps
Several days later you will begin to see the roots and leaves sprouting. 7 to 10 days in remove the plant from the water and plant it into soil with only the leaves above the soil. Your plant will continue to grow and in several weeks you will have a new head ready to be harvested.
If you want a different way to go with your pant you can try planting directly into the soil, skipping the water staging step from before. Keeping the soil from drying out will be very important that first week.
Growing Ginger
growing ginger from kitchen scraps
If you're looking for an easy plant to grow indoors Ginger is the one for you. Just take you're a chunk of Ginger from your kitchen scraps and place it into the soil. Make sure the newest buds are facing up. Unlike the other plants we've talked about so far Ginger will enjoy filtered light rather than direct sunlight.
Soon enough you will begin to see new growth sprouting up out of the soil, and under the soil roots will begin to sprawl out into the soil. After the plant acclimates to its new home you will be ready to harvest the next time you need Ginger. Pull the entire plant out of the soil and cut off a the pieces you need, and just replant it like you did initially.
As an added bonus for you Ginger makes a great house-plant. Even if ginger isn't your thing as far as cooking goes you can still get some aesthetic value out of the plant.
Growing Potatoes
Taking potatoes from produce back to growing is a great way to keep more waste out of the garbage. You can grow any variety of potato you like, it should just make sure the scrap has 'eyes' growing on it. With a potato that has a strong presence of eyes you can chop it up into 2 inch square pieces. Make sure each piece has 1 – 2 eyes. After you've cut your potato into pieces leave them out in room temperature for a couple of days. Leaving the pieces out allow the cut surface area to dry out and become callous which will prevent the pieces from rotting in the ground.
cut & dried potatoes from kitchen scraps
Potatoes need a very nutrient-rich soil, so if you have compost you should be sure to incorporate some into your soil before you plant it. When you are planting your potato cubes make sure they are in the 8 inch depth range with the eyes facing the sky. When you back fill your cube place 4 inches over the potato cube and leave the other 4 inches empty. Over time as your potato grows and roots begin to appear you will want to add more soil.
Growing Garlic
indoor container gardening garlic
You only need a single clove to regrow an entire garlic plant, just place the end with the root down into the soil. Place your container in a warm part of your home with direct sunlight and sit back and wait for the garlic to root itself and begin to send up new shoots. After the garlic becomes established in the soil cut back the shoots and the plant will begin to put all its resources into growing a big delicious garlic bulb. Just like the ginger above once you harvest your produce you can repeat this process and run through the cycle again.
Growing Onions
With onions your going to use the root end you cut off when prepping to cook your onions. Onions are great because of the ease to propagate. You want to try to keep half an inch of onion above the roots. You will want to take your cutting and place it into your soil in a sunny place and cover the top with topsoil. Keeping your soil moist will be very important while the onion begins to establish itself. If you're in the North East like myself you will want to keep the onion indoors in a container during the winter.
If you repeat the cycle and keep planting the onion roots eventually you should have enough onion plants going that you've become onion self-sufficient!
Growing Sweet Potatoes
indoor container gardening garlic
When you plant sweet potatoes you want to use the 'eyes' just like you do with a regular potato. You can bury the entire potato or pieces like you did with regular potatoes under a thin layer of topsoil in a damp and sunny place. Soon you will have new shoots beginning to appear from the soil. When the shoots begin to reach a height of four inches you will replant your pieces giving them around 12 inches between one another. Generally it take somewhere around 4 months to grow sweet potatoes like this. Keep a watchful eye out for slugs, they will be trying to eat your crop before you can.
When your growing your own sweet potatoes you want to be sure and use an organic soil as most commercial growers use chemicals to keep them from shooting.
Growing Mushrooms
For the most part I've focused on plants that are pretty easy to grow, propagating mushrooms is not included in that. If you're going to try to propagate mushrooms you'll be competing with the other fungi space. Mushroom spores enjoy warm humidity and nutrient rich soil, cooler temperatures will give your mushrooms a higher likelihood of success against other fungi
Shiitake Mushrooms
You want to grow mushrooms in a pot, trying to grow them in your garden would have too much competition from other mushrooms. Growing mushrooms inside of a container also allow you to mow the container around and provide different conditions for the mushrooms, which will help them propagate faster. I've experience the greatest success by providing a warm filtered light during the day and cool temperatures at night.
To get your mushrooms to propagate take off the head and place the stalk into your topsoil, making sure to expose the top to the air. If you have the right conditions for your mushroom you will have a new head grow from your base. You should have some very clear feedback if your mushroom has taken or not very quickly.
Growing Pineapple
pineapple root buds
To start growing pineapple you will need to take the leafy green top and remove all the fruit (yellow parts). To harvest a starting piece form a pineapple take a good grip of the leaves and twist the crown off of the fruit. If the brut force tactic isn't for you can take a good chef's knife and slice of the top of the pineapple and scrap off the flesh of the fruit with a spoon. Take a sharp knife and begin to slice small horizontal pieces off of the bottom of the crown till you can see root buds (picture left). Peel off a few layers of the leaves from the base of your pineapple cutting.
growing pineapple from kitchen scraps
With your prepped pineapple cutting prepare a container of warm water and place it cut side into the container. When the cutting begins to root replant it into a container with soil and be sure to water once a week. This kitchen scrap recycle is a long game, you won't have a pineapple worth harvesting for 2-3 years.
Avocados
Rather than tossing your avocado seed when you're getting the fleshy fruit for your cooking use it to grow your own avocado plant. Warning this one is going to take even longer to fruit then the pineapple if ever. House grown avocado plants rarely fruit and if you can grow it outdoors it could be 5 to 13 years before your eating your own avocados. People who farm avocados grown them off grafts (maybe a good idea for another article?!).
growing avocados from kitchen scraps
Take your seed and wash in the sink, with your cleaned seed stick in three or four toothpicks and suspend it above a glass of water. You want to place the seed broad end down and cover the seed with around an inch of water. Place your container into a warm area in an area with filtered sunlight and add water as needed. Within 2 – 6 weeks you will see roots and a stem begin to sprout. Once your avocado has a stem that is 7 inches long cut it back to 3 inches, this will focus the seeds back in to growing a strong root system. When your roots are thick and the stem has re-leafed take out the toothpicks and place the plant into a rich humus soil. I suggest using a 10 inch diameter pot. Leave the seed half exposed when you plant it into the soil.
planting avocados from kitchen scraps
Now that your plant is in the soil you want to supply it with a continual supply of light watering with an occasional deep soak. Avocados prefer a soil kept moist but you want to avoid saturating it too much and drowning the roots. If your leaves begin to turn yellow you are watering it too much, give the plant a few days of from watering. Now that the plant is established you want to begin to give it as much sunlight as you can. If you notice that your leaves are beginning to brown at the tips you have a salt build up in your soil and you will need to water the soil thoroughly and let it drain. Once your stem reaches 12 inches in height you will want to cut it back to 6 inches to help new shoots grow.
Growing Carrot-tops | Fun For The Kids
Because carrots are a tap-root you can't actually regrow the part we all eat. You can how ever grow a fun attractive flowering plant for your kitchen. Growing the carrots is a my son's favorite from this list.
The next time you buy carrots for cooking cut off the tops leaving and inch or so of the vegetable attached. Just like the avocado take several toothpicks and stick them into the side of carrot. Place your carrot cutting into a container with water high enough to reach the bottom of your cutting. Place your container in an area that will receive filtered sunlight and make sure that as the water evaporates or is consumed by the carrot you replace it to keep the bottom of the carrot wet. Within a few days you should see the roots begin to sprout. When you see you roots sprouting you can transplant the plant into a bed of soil.
Depending on your conditions your success may vary from mine, God knows I'm not always successful with my attempts. These are great activities for black thumbs because you're using kitchen scraps rather than spending money on saplings or seeds. Do you have any suggestions of plants we missed, share with us in the comments below!
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← Foliage Plant Combinations | Forget The Flowers How To Recycle K Cups | My Addiction Is Killing The Earth →42 thoughts on "17 Plants You Grow from Kitchen Scraps"
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Leo January 31, 2013 at 10:56 am
Cool, knew about some of these, but not the garlic or the ginger. Guess I need to get a couple of small pots.
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Mary March 28, 2013 at 1:16 am
The larger the clove is that you plant, the larger the bulb will most likely be too. We set garlic cloves out in our garden in late fall and cover them with a layer of leaves. As soon as the ground is warm enough and the leaves aren't frozen in the spring, we remove them and it starts growing right away. Once the tops become dry, it's time to harvest. Garlic is really easy to grow, even in Zone 3 where I live!
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jenettyshome January 31, 2013 at 12:05 pm
Neat ideas. I'll have to do some of these with my kids.
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Judith Conrad January 31, 2013 at 1:34 pm
I have tried to grow an avocado plant several times, but before the stem can grow out of the seed it turns brown and dies. What am I doing wrong? Thank you for any help you can give me.
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Black Thumb Gardener February 1, 2013 at 8:07 am
Hey Judith, I might try bottled water as the seed might not be happy with tap water (chlorine). I might also look at how much sun exposure the seed is getting. Is your home dry, that might be another factor. I think sun, light, and water are the big 3 when it comes to plant health at this point. If it were in the soil I would look at nutrient levels but sense it's in water it shouldn't be a factor.
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liz February 5, 2013 at 11:20 am
chlorine also turns into a gas and evaporates – if you don't want to go buy water you can fill your container and leave it out for 24 hours. just be sure to leave it open.
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Bridget Emery March 11, 2013 at 3:31 pm
Thanks BTG and Liz! I was having the same problem. I think leaving the water out in a jug is something I will do for my outdoor plants as well. Thanks for the tips!
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Donna January 31, 2013 at 11:04 pm
I have an avocado that I grew from the pit, that is about 2 feet tall. I just placed the pit, point side up, in a pot of dirt, burying it about half the height of the pit. Then I placed a clear glass of a clear plastic tumbler can be used, over the top of the pit. I placed it on my kitchen table. My little 'greenhouse' got about 2 hours of direct sunlight a day and about 8 to 10 hours of indirect light. I never had any luck using the toothpicks…..either the pit would rot or I would forget to replace the lost water in the glass.
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Bridget Emery March 11, 2013 at 3:32 pm
LOL okay I may have to try the avas again. MAYBE….
Thanks for the tips Donna!
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Lynn February 4, 2013 at 9:01 am
Horseradish works great too! Root it, plant it in your garden and watch out! It grows and spreads….
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Akhila February 4, 2013 at 10:04 am
Mint! I have had great success with growing mint. Just plant the stems/sticks in a pot of soil after the leaves are used. Grows well with moist soil & sunlight. Actually, it is difficult to control its growth if planted on the ground. If you want to contain it, plant it in a pot. Haven't tried it indoors as I get zero direct sunlight anywhere in the house.
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Greg Post authorFebruary 4, 2013 at 10:07 am
Funny enough I'm working on an article now where I grow mint in a container.
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Khadu'ja April 10, 2013 at 5:42 pm
My house is completely devoid of garden-able soil in our yard, so I have about a dozen pots of various things. One is mint. I started it last fall as two stalks from a co-workers garden and while not growing rampant its thriving. Things I have learned are: 1) very moist soil is it's happy place, I give it about a 1/2 – 1 cup of water every other day. 2) The more direct sunshine the better.
If I water it less either in frequency or amount the leaves drop and the stalks wither. Give it a nice big drink and new leaves sprout. The more sunlight it gets the more it sprouts.
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Roxanne February 4, 2013 at 3:29 pm
Even planting in a pot won't control the rabid spread because they send out runners. The runners just end up on the ground next to the pot & if it's on grass or soil they'll root & spread. If you really need to control it, keep the pot on a patio or hard surface. I love mint & don't mind the viral spread since I hack it back to the stems every fall after the frost. Plus then I get a couple gallon bags full of mint to dry & use throughout the winter!
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Holly April 2, 2013 at 11:01 am
I planted my mint next to my house and it "found" it's way in the house. One little crack, and I had white mint in my basement ceiling.
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Thea February 4, 2013 at 12:14 pm
Horseradish works the same way as ginger – just stick in dirt, pull up when you are ready to harvest some.
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KnightBaker Simon February 4, 2013 at 5:23 pm
I've never had much luck when I've tried avocado and now that I know about lemongrass, I'll definitely be trying that. Pineapple would be a dream, but I feel it's too cold for it to prosper where I live.
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Sabrina Warner February 4, 2013 at 5:51 pm
Take a carrot, cut it in half. Hollow out from the cut area to create a water reservoir. Put toothpicks thru the cut edge. Attach strings to the toothpicks. Hang and watch the leaves sprout and go up. Should work with parsnips and celery root too!
The pineapple works great as a house plant.
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Chris February 4, 2013 at 6:07 pm
please post a pic for the carrots, Sabrina, if you have one. I cant quite visualize how it's supposed to look!
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rose merrill February 4, 2013 at 7:27 pm
I'm interested in the mushrooms- from what I understand here, I can take any (?) mushroom and plant it and it will grow mycorrhizal roots? Even the white button mushrooms that have been cut? I thought I needed a spore print to start them. This is a good article- I've done most of these projects, and look forward to trying the mushroom experiment! Thank you!
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sadie February 5, 2013 at 1:15 pm
I tried planting ginger 3 times and it just dry out and die, what am I doing wrong I am planting it in a pot outside
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Sadie, I would take a look at what the soil conditions are in the soil and try watering on more frequently. Are the light conditions correct?
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Beth February 5, 2013 at 1:37 pm
We have a historic home in my area that has 20-30 foot tall avocado trees grown from seeds! From what I hear they were planted about 50 years ago. It can be done…
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ajc167Anna February 5, 2013 at 6:29 pm
Great article!! My kind of gardening – experimental!!
When it comes to mint, viral is truly the word!! It took me close to ten years to completely eradicate it from my first garden – it was literally all over the property when we moved in.
I'm helping look after an aging friend's garden now and there's mint coming from the neighbour's yard and crowding out her plants!! Another epic battle!!Reply ↓-
MaryAnne April 9, 2013 at 6:47 pm
Oh! What a dream.
Many years ago when I moved to NY there was a wonderful patch of mint. Within a few years it had disappeared.
Last year here in SC I planted mint in a large container. It just got leggy and never filled out the pot. Never to be one to give up, I am planting 2 more plants in a pot this year too.
Do they need full sun and lots of water?
I also have an area in from of my house about 6′ x 9′ that doesn't get full sun all day and wondered if mint would grow in that area.Thanks for help, I think I'm learning a lot. That remains to be seen. lol
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Edible Little Balcony February 12, 2013 at 1:01 pm
Wow, great article! Such a variety of things to grow. Love the pics and the short "how-to"s! Great way to live sustainably – some great tips for my balcony garden!
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LABatson February 12, 2013 at 1:04 pm
This is great stuff; I'm going to get started today! I've got a few mint plants grown from sprouting store bought herbs, but I haven't done any of these others.
Does anyone know if spinach plants will grow new roots? I have some fresh stuff and I cut off the bases and stuck a few in water on the off-chance it works.
I think growing a garden from scraps would make a great kid's science fair experiment!
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Mumblebug February 21, 2013 at 3:59 am
You don't even need to chop potatoes up, just use a paring knife to peel them, then plant the peelings straight into the soil. I did this last year as an experiment, one pot had just the peeling and the other a seed potato.
The peeling only pot grew about 10 more potatoes than the seed potato pot!Reply ↓ -
Karen February 23, 2013 at 1:34 pm
I love these ideas and will be trying several myself. A couple of years ago, I cut a couple of organic Ozette fingerling potatoes in half and threw them in my garden to see what would happen. Even not knowing what I was doing, I had a decent yield, then another decent accidental yield last year from the small pieces I failed to cultivate. This year I'm going to intentionally plant them the right way to see if I can up my yield.
Definitely going to try the ginger and garlic. Thanks for sharing!
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john February 25, 2013 at 10:48 pm
just rip the eyes off the potatoes and throw in water…instantly start growing roots
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Stephanie February 25, 2013 at 6:17 pm
Great ideas! I shared on our district's Give Me Five birth-5 initiative. I also am going to try with some of my students!
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Delia March 8, 2013 at 6:44 am
Love the kitchen scrap tips. I'm going to try the green onions and sweet potato. My friend says to use an old beat up plastic trash can or laundry basket as it is easier to harvest them. I will try it. Thanks for a great article.
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Chris Turner Pasek March 8, 2013 at 9:30 pm
We did a hay bale garden last year….I was growing celery….something came along and nibbled it all down….this happened during the day time….my friend told me to plant mint there and I went to where we have lots and lots of mint and pulled up some and just stuck it in the hay bale of the celery and also of the tomatoes and the peas and the cukes….well the celery came back and nothing nibbled on anything again. I really don't mind the mint….when we cut the grass where the mint is entangled it smells so nice.
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Hayley Bohler March 11, 2013 at 5:43 pm
My husband grew 2 of the avocado trees, they are pretty neat..
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Gayle Glisson March 11, 2013 at 5:58 pm
I have had a pineapple plant for several years which I started from a top , however , it has never produced a pineapple.
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Elizabeth March 11, 2013 at 9:12 pm
I've got 2 apple trees growing from store bought apples. I just placed them in a ziplock bag with a moist paper towel , until they began to sprout, about two weeks. Then I planted them in a small paper cup and put them in the window. In a few months I'll move them a bigger container, gradually increase size of planters until they are ready for their permanent home in the ground…I figure that will be next January.
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To clarify, I placed the seeds in the ziplock bag…
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Jocelyn April 10, 2013 at 6:05 pm
Genius!!! Thank you for saying this! I've wanted to plant an apple tree (it should thrive where I live) and you've just inspired me in the way I want to go about it.
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Doug Dowen March 13, 2013 at 7:45 pm
I am looking to start growing my own horseradish root… what would you recommend?
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Margie March 27, 2013 at 7:26 pm
I started a piece I got at the grocery store. I cut the bottom out of a large plant pot (to stop it from spreading) and just planted it and left it alone. It was ready in the fall but I left a piece in to regrow. Really hot and good!
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Val April 3, 2013 at 4:57 am
I just wanted to say what a fantastic page this is and 'thank you' for all the useful information
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Shannon April 10, 2013 at 6:57 pm
You can also grow peppers, after you remove the seeds you can plant them in soil, in or outdoors, takes about 45 days to start producing
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