Are you intrigued by the idea of cultivating fresh produce without soil? Welcome to the fascinating and accessible world of water gardening! Starting a garden can often feel daunting, but what if you could establish a flourishing indoor oasis using just the scraps from your refrigerator?
Growing plants from fruit and vegetable cuttings in water is not only incredibly straightforward but also a deeply rewarding experience. This beginner-friendly form of hydroponics requires minimal investment and can transform your kitchen into a vibrant, productive space. With the right selection of plants, you can easily learn how to propagate and regrow a continuous supply of your favorite greens, herbs, and even some surprising fruits.
From common kitchen staples to aromatic herbs and unique fruits, many plants readily sprout roots and leaves when given just water and ample light. This guide will walk you through 27 of the easiest plants and fruits you can effortlessly grow using leftover pieces right at home, making sustainable living more attainable than ever.
27 Easy Plants and Fruits You Can Grow in Water
1. Garlic
Growing fresh garlic greens in water is a simple and satisfying indoor gardening endeavor. These tender, chive-like shoots provide a milder garlic flavor, perfect for culinary garnishes or adding zest to various dishes, ensuring a fresh supply directly from your kitchen scraps.
To begin, place a plump garlic clove, ideally one already showing a green sprout, root-end down into a small glass. Add just enough fresh water to cover the bottom third of the clove. Position the glass in a bright, sunny spot. Change the water every one to two days to keep it oxygenated and prevent mold. Once shoots are 3-4 inches tall, snip off about a third for immediate use; they will readily regrow for multiple harvests.
2. Lemongrass
Lemongrass, a fragrant herb essential in many Asian cuisines, is remarkably easy to regrow from a stalk in water. This method ensures you have a constant supply of fresh, aromatic lemongrass for cooking, teas, or simply for its pleasant fragrance in your home.
Trim a fresh lemongrass stalk, leaving about two to three inches of the base with its root end. Place it in a glass with about half an inch of water, just enough to cover the very bottom. Place the glass in a sunny location. Change the water every couple of days. New roots and shoots will appear within one to two weeks. Once roots are established, you can continue growing it hydroponically or transplant it into soil for a larger plant.
3. Sweet Potatoes
Growing sweet potatoes in water is a delightful way to produce attractive leafy vines, perfect as an ornamental plant or to generate “slips” for planting in soil to harvest full tubers. It’s a fun and educational hydroponic project for all skill levels.
Cut a sweet potato in half and suspend it over a jar of water using toothpicks, ensuring half the potato is submerged. Position the jar in bright, indirect light. Change the water every two to three days. Roots will emerge from the submerged portion, and leafy shoots (slips) will grow from the top. Once roots are four inches long, carefully twist off the slips, root them in a separate glass of water, and then plant them in soil once their own roots develop.
4. Marjoram
Marjoram, a delicious herb with a delicate, sweet, and slightly spicy flavor, is an ideal candidate for water propagation. Expanding your herb garden or ensuring fresh sprigs are always available is straightforward using this method.
Take four to six-inch cuttings from a healthy marjoram plant, removing leaves from the bottom two inches. Place these cuttings into a glass of fresh water, ensuring the leafless part is submerged. Position the glass on a sunny windowsill. Change the water every other day. Roots can take a few weeks to appear, but with patience, they will form. Once roots are established, transplant your new marjoram plant into a small pot with potting mix or directly into your garden.
5. Rosemary
Rosemary, a fragrant evergreen herb with woody stems, is a fantastic choice for water propagation. Its distinctive aroma and flavor make it a culinary essential, and having a fresh supply readily available can enhance numerous dishes.
Select healthy, non-flowering rosemary stems, four to six inches long. Strip leaves from the bottom two inches to expose nodes. Place cuttings in a clear glass of fresh water, ensuring the leafless portion is submerged. Position the glass in a bright, sunny spot indoors. Change water every two to three days. Roots may take three to eight weeks to form, but once established (at least an inch or two long), your rosemary is ready for a soil transfer to become a larger, more permanent plant.
6. Lettuce
Regrowing fresh lettuce from its base in water is incredibly simple, offering a continuous supply of tender greens for salads and sandwiches. This method works particularly well for romaine and other loose-leaf varieties, extending the life of your grocery store produce.
Save the sturdy base of a lettuce head, ensuring a few small inner leaves remain. Place it, cut-side down, in a shallow dish with about half an inch of fresh water, just enough to cover the bottom core. Position the dish in bright, direct sunlight and change the water daily. Within days, new leaves will emerge from the center. You’ll have fresh, usable lettuce leaves to harvest in one to two weeks, providing multiple delicious inner harvests.
7. Peppers
Propagating peppers from cuttings in water is an exciting way to multiply your favorite varieties and potentially enjoy another harvest, especially for overwintering plants. This method leverages a warm, humid environment ideal for root development.
Take a healthy four to six-inch cutting from the lower half of a pepper plant, removing all but the top few leaves. Place the cutting in a glass of water, ensuring most of the stem is submerged. Loosely cover the glass and cutting with plastic wrap to create a humid microclimate. Place in bright, indirect sunlight. Change the water every two to three days. Once roots develop (within a few weeks), transplant into soil for continued growth and potential fruit production.
8. Carrots
While full carrot roots don’t grow in water, you can effortlessly regrow the beautiful, feathery green tops. These greens are edible and surprisingly flavorful, making a delightful addition to salads, pestos, or as a fresh garnish. It’s a simple, rewarding kitchen scrap project that minimizes waste.
Save the top inch of a carrot, ensuring the crown where shoots emerge is intact. Place these cut carrot tops into a shallow bowl with about half an inch of water, cut surface down. Ensure the water level is low enough so the crown remains exposed. Position the bowl in a well-lit area and change the water daily. Within a week, new green shoots will emerge, providing a continuous supply of tasty greens to harvest.
9. Pineapple
Growing a pineapple from its crown is a popular and engaging project that highlights a plant’s ability to regenerate. Though it begins in water, it eventually requires soil to develop into a mature plant that might, years later, produce fruit.
Twist or cut the leafy crown off a ripe pineapple, removing any fruit pieces. Peel off lower leaves to expose an inch or two of the stem base. Insert three to four toothpicks around the base. Suspend the crown over a glass of water, submerging only the exposed stem. Place in a warm room with bright, indirect sunlight. Change water every two to three days. Once a robust root system forms, transplant the crown into a pot with well-draining soil for a beautiful houseplant.
10. Lavender
Lavender, cherished for its soothing fragrance and beautiful purple blooms, is an excellent herb to propagate in water. Having fresh lavender can add elegance to your home, flavor to your cooking, or serve as a calming aromatherapy element.
Take four to six-inch cuttings from healthy, non-flowering lavender stems. Remove leaves from the bottom two to three inches and place the cuttings into a glass of fresh water, ensuring the leafless portion is submerged. For support, add small pebbles if needed. Position in bright, indirect sunlight, changing the water every few days. Roots typically form within three to six weeks. Once a good network of roots has grown, transplant the lavender into a pot with well-draining soil. These perennial shrubs will offer beauty and fragrance for years.
11. Avocado
Growing an avocado tree from its pit in water is a classic and enjoyable project. While fruit production is rare outside tropical climates, it creates a striking houseplant with large, glossy leaves.
Clean an avocado pit and identify its top (pointy) and bottom (flatter) ends. Insert three to four toothpicks evenly around the middle, then suspend the pit over a glass of water, with the bottom half submerged. Place the jar on a warm windowsill with bright, indirect sunlight. Change the water frequently (every other day) to prevent mold. Sprouting can take weeks or months. Once the stem is seven inches tall with several leaves and a strong root system, transplant it into a pot with well-draining soil, keeping the top half of the pit exposed.
12. Mint
Mint, a vigorous and versatile herb, is prized for its refreshing aroma and many culinary uses. Growing mint indoors in water is incredibly easy, providing a constant supply for teas, cocktails, desserts, and savory dishes without the worry of it spreading invasively.
Take four to six-inch cuttings from a healthy mint plant, removing leaves from the bottom two inches. Place these cuttings into a glass of fresh water, ensuring the leafless portion is submerged. Position the glass in a well-lit spot, avoiding intense direct sunlight. Change the water every couple of days. You’ll likely see roots forming within a week. Once roots are an inch or two long, you can continue growing mint hydroponically or transplant it into a pot with moist soil for rapid and frequent harvests.
13. Celery
Celery is one of the most well-known and satisfying vegetables to regrow in water from kitchen scraps. It’s a fantastic way to extend the life of your produce and enjoy fresh, tender inner stalks and leaves, perfect for snacks, salads, or soups.
Save the bottom two to three inches of a celery base. Place it, cut-side up, into a shallow bowl with about an inch of warm, fresh water. Position the dish on a bright windowsill and change the water daily. Within days, small yellow leaves will emerge from the center, quickly turning green, and roots will develop from the bottom. Once robust, continue growing in water for smaller harvests or transplant into soil for larger growth.
14. Spinach
Spinach, a nutrient-dense leafy green, thrives in moist conditions, making it an excellent candidate for hydroponic cultivation, especially for microgreens or baby spinach. While not typically regrown from a “scrap,” it’s easily started from seed in a water-based system.
Place spinach seeds into rock wool cubes or similar inert media. Position these cubes in a small container with an inch or two of nutrient-rich water, ensuring the cube bottoms are submerged to wick moisture. Keep in a well-lit area or under a grow light. Change water and replenish nutrients regularly. As seedlings sprout and develop roots, they can continue in a hydroponic system or be transplanted into soil for fresh, tender spinach leaves.
15. Potatoes
Similar to sweet potatoes, you can encourage regular potatoes to sprout in water, producing “chits” or shoots that can then be planted to grow new potato tubers in soil. This method is a quick way to jumpstart your potato plants, especially if you have an old potato with visible “eyes.”
Cut a potato into halves or quarters, ensuring each piece has at least one “eye.” Insert a few toothpicks into the sides and suspend the potato piece over a shallow container of water, cut side down. Roots will develop within a few days from the submerged portion, and sprouts will grow from the eyes. Once roots are robust and sprouts are a few inches long, these potato cuttings are ready to be transplanted into nutrient-rich soil outdoors or in large containers for a new potato harvest.
16. Bok Choy
Bok Choy, a crisp and highly nutritious Asian leafy green, is another excellent vegetable that can be regrown from its base in water. It’s a low-maintenance way to enjoy fresh, tender leaves, making it perfect for novice gardeners or those with limited space.
Save the bottom two to three inches of a bok choy core, ensuring it’s firm and intact. Place this core, cut-side down, into a small bowl with about half an inch of fresh water. Position the bowl in a sunny location. Change the water daily or every other day to prevent rot. Within days, new leaves will emerge from the center, and roots will develop. These new leaves will grow quickly, providing multiple small harvests of fresh bok choy for your stir-fries or salads.
17. Mangoes
Transforming a mango seed into a sprouting plant is a fascinating and rewarding project, akin to growing an avocado. While a mango tree grown from seed in a non-tropical climate might not bear fruit, it makes a beautiful, lush houseplant with glossy leaves.
Clean a mango pit and carefully open its fibrous husk to extract the inner seed. Insert three to four toothpicks around the middle, then suspend the seed over a glass of water, rounded side down, ensuring a quarter to half is submerged. Place in a warm room with bright, indirect sunlight. Change water every other day. Sprouting can take two to five weeks. Once it sprouts roots and a stem with leaves, transplant it into a peat pot or larger container with well-draining soil, keeping the top of the seed exposed.
18. Cabbage
Similar to lettuce and bok choy, cabbage can be easily regrown from its core in water, providing fresh, tender inner leaves. This is an excellent way to get a few extra servings from your grocery store cabbage and reduce food waste efficiently.
After using most of a cabbage head, save the bottom two to three inches of the core. Place this core, cut-side down, into a shallow bowl with about half an inch of fresh water. Position the dish in bright, indirect sunlight. Change the water every two to three days to prevent mold. Within a week, new sprouts will emerge from the center and small roots will develop. Harvest the outer, tender new leaves as they mature, allowing continuous growth from the core.
19. Ginger
While ginger root isn’t typically grown directly in plain water from a cutting for a full harvest, you can effectively sprout it in water as an initial step before transferring it to a hydroponic system or soil. This method helps awaken the ginger rhizome and prepares it for robust growth.
Select a plump ginger root with visible “eyes” or green buds. Place the root, or a section containing an eye, into a shallow dish with just enough water to partially submerge it. Keep the dish in a warm, bright location, changing the water daily. Once significant leaf, stem, and root growth appear (after a few weeks), transfer it to a specialized hydroponic container with nutrient solution or plant it in a wide, shallow pot with rich, well-draining soil, just barely covering the rhizome.
20. Tomatoes
Tomatoes are surprisingly easy to propagate from cuttings in water, especially indeterminate varieties. This method allows you to quickly multiply your favorite tomato plants or save a beloved variety for indoor growing, extending your harvest season.
Take a healthy “sucker” (side shoot) from an existing tomato plant, about four to six inches long. Remove lower leaves, leaving a few at the top. Place the cutting into a glass of fresh water, ensuring the leafless stem is submerged. Position the glass in a warm, sunny environment. Change the water every one to two days. Roots should form within a week to ten days. Once the root system is well-developed, transplant the cutting into a pot with well-draining soil to grow into a new, fruiting tomato plant.
21. Parsnips
Much like their orange cousins, carrots, parsnips can also be regrown for their edible greens in water. While you won’t yield a new parsnip root through this method, the leafy tops are a flavorful and attractive addition to your indoor garden and culinary repertoire.
To regrow parsnip greens, save the top inch of a parsnip root, ensuring the crown is intact. Place this parsnip top into a shallow dish with about half an inch of fresh water, cut side down. Position the dish on a bright windowsill, ensuring ample light. Change the water every other day. Within a week, tender green shoots will sprout from the center. These can be harvested as they grow, providing a peppery, slightly sweet flavor for salads or as a garnish. For full tubers, transplant rooted tops into rich, loose soil later.
22. Cucumbers
Cucumbers can be successfully propagated from cuttings in water, providing a delightful accompaniment to your homegrown tomatoes or a fresh addition to any meal. This method is particularly effective for continuing growth from a healthy outdoor plant or rooting a favorite variety.
Take a healthy six to eight-inch cutting from a mature cucumber vine, removing flowers, fruits, and large leaves. Strip leaves from the bottom two to three inches to expose nodes. Place the cutting into a glass or specialized hydroponic bucket filled with fresh water, ensuring the leafless stem is submerged. Position in a warm, bright location (indirect sun or grow light). Change water every two to three days. Roots should form in one to two weeks. Once a robust root system develops, transplant into a larger pot with soil or a hydroponic system, remembering cucumbers require support for climbing.
23. Basil
Basil, a fragrant and widely-loved culinary herb, is incredibly easy to grow from cuttings in water. This method allows you to extend the life of your grocery store basil or multiply your existing plant, ensuring a constant supply of fresh leaves for pestos, pasta, and salads.
Take four to six-inch cuttings from a healthy plant before it flowers. Remove leaves from the bottom two to three inches to expose nodes. Place cuttings into a container of fresh water, ensuring the leafless stem is submerged. Position in bright, direct sunlight. Change water every two to three days. Within a week to ten days, white roots will emerge. Once roots are a few inches long, transplant into well-draining soil, or continue hydroponic growth with diluted liquid fertilizer for continuous fresh basil.
24. Beets
Like carrots and parsnips, beets are root vegetables, meaning the edible bulb won’t regrow in water. However, you can effortlessly grow delicious and nutritious beet greens from the top of the beet root. These greens are fantastic in salads, stir-fries, or sautéed as a flavorful side dish.
To grow beet greens in water, simply cut off the top third of a fresh beet root, ensuring the crown is intact. Place this beet top, cut-side down, into a shallow container on a sunny windowsill. Add just enough water to submerge the bottom half to two-thirds of the beet top, keeping the very top exposed. Change the water every few days. Within a week, new green shoots will sprout. Harvest the outer leaves as they mature, allowing inner ones to continue growing, providing a continuous supply of fresh beet greens.
25. Onions
Regrowing green onions (scallions) from their root ends in water is one of the simplest and most cost-effective kitchen scrap gardening projects. It provides a continuous supply of fresh, mild onion flavor that’s perfect for garnishes or adding to a variety of dishes.
After using the green tops, save the white root ends, leaving an inch or two of white. Place these root ends into a clear jar, root-end down. Add just enough water to cover the roots. Position the glass in a well-lit window. Change the water every other day. Within days, new green shoots will emerge rapidly, and new white roots will develop. Snip off desired amounts as needed; they will regrow multiple times from the same base, offering a truly sustainable source of fresh flavor.
26. Fennel
Fennel, known for its distinct anise-like flavor, is both an herb and a vegetable. While the bulb is usually the prized part, you can easily regrow the delicate, feathery green fronds in water. These greens are wonderful for adding a fresh, aromatic touch to salads, fish dishes, or as garnishes.
To cultivate your own fennel greens, simply cut off the bottom inch or two of a fresh fennel bulb, ensuring the root base remains intact. Place this bulb base into a small bowl with enough fresh water to cover its bottom, keeping the top exposed to air. Position the dish in a bright location, such as a sunny windowsill. Change the water daily or every other day. Within a few days, new green shoots will emerge quickly, providing a continuous supply of fresh fennel flavor. While a full bulb won’t regrow, you’ll get plenty of delicious fronds, extending your produce’s utility.
27. Leeks
Closely related to onions and garlic, leeks are another excellent vegetable to regrow in water from their root ends. This method allows you to extend your harvest of fresh leek greens, which offer a milder, sweeter onion flavor than their relatives, perfect for soups, stews, and various other dishes.
After using the white and light green parts of your leeks, save the bottom two to three inches of the root end, ensuring roots are intact. Place this leek base, root-down, into a shallow glass or jar with water covering the roots and very bottom of the white section. Position the glass on a bright windowsill. Change the water every couple of days. New green shoots will emerge rapidly from the center. Harvest these new greens by snipping off the desired amount; they will continue to regrow multiple times, ensuring a continuous supply of fresh leek flavor.
Why Embrace Water Gardening?
There are countless compelling reasons to delve into the world of “water gardening” or simple hydroponics. Whether you’re experimenting with regrowing plants from cuttings in a humble glass jar on your windowsill or considering a more advanced hydroponic setup, making the most of your fruit and vegetable scraps is a remarkably smart and sustainable practice for several reasons.
Firstly, it’s often incredibly cost-effective, if not entirely free! All you truly need is water, some kitchen scraps, and a little bit of patience. This approach can significantly reduce your grocery budget by providing a continuous supply of fresh herbs and greens. You’ll also save money on buying seeds, new plants, or even specialty potting soil, making it a true win-win for your wallet and the environment while promoting sustainable gardening practices.
Beyond the financial benefits, water gardening offers immense satisfaction. It’s an engaging activity that connects you with your food source, allowing you to witness the miracle of growth firsthand. It’s also an excellent educational tool for children, demonstrating plant life cycles in a tangible way. Furthermore, growing plants indoors in water provides year-round access to fresh produce, regardless of outdoor weather conditions, and helps purify indoor air. It’s a clean, soil-free method that minimizes pests and mess.
Embracing water gardening is easy, fun, and a fantastic way to spend an afternoon (or many afternoons!). By trying some of these simple water propagation techniques, you’ll not only reduce waste but also cultivate a greener, more self-sufficient lifestyle. Give these choices a try and transform your kitchen into a thriving edible garden, bringing the joy of fresh, homegrown produce right to your fingertips!