If you have onions sprouting in your kitchen, you might wonder if they are still usable. The good news is that sprouted onions are perfectly fine to plant. Instead of tossing them, you can turn those sprouting bulbs into a fresh crop of onions or scallions. This guide covers how to plant sprouted onions step by step, whether you are working with a garden bed, a container, or an indoor setup. Many gardeners find this a satisfying way to reduce food waste while enjoying homegrown produce.
Planting sprouted onions works because the sprout is already actively growing. With the right soil, sunlight, and watering routine, you can get a decent harvest. Some growers prefer to use onion sets or seeds for more predictable results, but sprouted onions from the grocery store can still produce tasty bulbs or greens. The key is knowing when to plant, how deep to place the onion, and what conditions help the plant thrive. Below, we compare 8 products that can help with your how to plant sprouted onions journey in October 2026.
Pros
- High germination rate with most bulbs sprouting quickly
- Great value for a mixed assortment of 50+ onion sets
- Versatile planting options let you grow in small or large spaces
- Healthy, robust plants that produce flavorful onions
- Fast shipping and well-packaged to ensure freshness
Cons
- A few bulbs may arrive dried out or unusable, as noted in some reviews
- Yields can vary depending on soil and growing conditions
- Cannot ship to Idaho or Washington state
The Mixed Onion Assortment from Stargazer Perennials is a practical choice for home gardeners who want a reliable supply of red, white, and yellow onions. This 8-ounce pack contains roughly 50 to 60 hand-sorted, non-GMO onion sets grown naturally in the USA. It's designed for gardeners in zones 3 through 10, making it a versatile option for most regions. Whether you're a seasoned grower or just starting out, the included planting guide helps you get started right away.
The standout feature here is the mix of three onion colors, which adds variety to your meals and garden. The sets are suitable for both short-day and long-day conditions, so they adapt well to different latitudes. Many buyers report high germination rates and fast growth, with some noting that the pack actually contains more than 50 bulbs. You can harvest them young for salads or let them mature into full-size onions for storage. The ability to plant in garden beds, raised planters, or even containers indoors adds to their appeal.
In terms of build quality, the bulbs are generally healthy and firm upon arrival, though a small number of customers have received dried-out or papery bulbs. The packaging is recyclable and the sets are shipped year-round, which is convenient for planning your planting schedule. The brand's commitment to chemical-free growing and bee-friendly practices is a nice bonus for eco-conscious gardeners.
On the downside, some users experienced variable yields, and a few found that a portion of the bulbs didn't sprout. Additionally, the product cannot be shipped to Idaho or Washington. Overall, this onion set mix offers good value for the price, especially if you want a diverse harvest without buying multiple varieties separately. It's a solid choice for any home gardener looking to grow their own onions with minimal fuss.
Pros
- USDA organic certification ensures no synthetic chemicals
- Sweet, mild flavor perfect for fresh eating or cooking
- Good storage life for a home-grown onion
- High germination rate reported by many users
- Heirloom variety allows seed saving for future seasons
Cons
- Requires a long growing season (10-12 weeks indoors) for best results
- Some users may find the 200-count pack small for large gardens
- Drought tolerance is only moderate once established, not for arid climates
If you are after a truly sweet onion that lives up to its reputation, the Walla Walla is a classic choice. These seeds from Purely Organic Products LLC bring you a USDA-certified organic, non-GMO, open-pollinated heirloom variety. The result is a 4-5 inch bulb with a succulent, mild flavor that is perfect for salads, sandwiches, or cooking. They store well too, so you can enjoy your harvest for weeks after pulling.
One of the standout features is the flexibility to start these seeds indoors. Onion seed can be finicky, but this variety is forgiving. You can sow them in small flats 10-12 weeks before your last frost date, then transplant outdoors 4-6 weeks before that last frost. This gives you a head start on the season and helps ensure a full-sized bulb by fall. The seeds are packed for the current growing season, so germination rates are high now and remain good for the next year.
Build quality is solid. Each packet is individually styled with the plant variety on the front and detailed instructions on the back. It is a nice touch for gifting or for storing in your seed box. The seeds themselves are small but plump, and the organic certification means no synthetic chemicals were used in production. This is important if you are committed to organic gardening.
A potential drawback is the quantity. At 200 seeds, it is a good amount for a small to medium garden, but if you are planning a large onion patch, you might want to buy a couple of packets. Also, the long indoor start period is a commitment, but it is typical for onions in cooler climates. The drought tolerance is noted as a feature, but do not expect it to thrive without regular water in dry spells.
Overall, these Walla Walla onion seeds are a reliable, high-quality choice for home gardeners who want a sweet, heirloom onion. The organic certification, high germination rate, and clear instructions make them a solid buy. Just be ready to give them the time they need indoors for the best results.
Pros
- Comprehensive guide that covers the entire onion-growing process from start to finish
- Beginner-friendly with clear instructions and practical tips for all skill levels
- Digital features like page flip and screen reader support enhance the reading experience
- Affordable price for the depth of information provided (228 pages)
- Includes historical and nutritional context that enriches the gardening knowledge
Cons
- Lacks X-Ray and Word Wise features, which might limit some readers' ability to quickly reference terms
- No print version available; digital-only format may not suit everyone's reading preference
- No customer reviews yet, so it's hard to gauge real-world usefulness from other buyers
If you've ever wanted to grow your own onions but didn't know where to start, 'How to Grow Onions' by Jack Blake is a solid resource. This Kindle book lays out the entire process in a straightforward way, from picking the right varieties to harvesting and storing your crop. It's written for both newbies and seasoned gardeners, and the tone is encouraging without being overly simplistic.
The standout feature is how thoroughly it covers each stage. You get practical tips on soil preparation, planting depth, watering, and pest management, plus guidance on when and how to harvest for the best flavor. The book also dives into the history of onions and their nutritional punch, which adds a nice layer of context. At 228 pages, it's a meaty read but never feels padded.
The digital format works well. Page flip is enabled so you can easily jump between sections, and screen reader support makes it accessible. That said, it doesn't include X-Ray or Word Wise, which some readers use for quick definitions or character notes. If you rely on those features, you might miss them here. Also, this is a Kindle-only release, so if you prefer physical books, you're out of luck.
Since the book just came out in July 2024, there aren't any customer reviews yet. That makes it a bit of a gamble, but the content is well-organized and the author clearly knows his onions (pun intended). The price is fair for the amount of information, and I'd recommend it to anyone who wants a comprehensive, no-nonsense guide to growing onions at home.
Overall, 'How to Grow Onions' delivers on its promise. It's a practical, informative guide that will help you get a successful harvest. If you're ready to turn your garden into an onion patch, this book is a smart starting point.
Pros
- Very accessible for beginners with clear, easy-to-follow instructions.
- Focuses on small-space gardening, which is ideal for apartment dwellers.
- Covers the entire process from seed to storage in just 80 pages.
- Part of a reputable series, adding credibility for new gardeners.
- Digital format allows for quick reference and portability.
Cons
- At only 80 pages, some advanced topics like disease management may be too brief.
- No X-Ray or Word Wise features for easier navigation or vocabulary help.
- Limited to Kindle format, so not available as a physical book for those who prefer print.
Grow Your Own Onions at Home is a compact, beginner-focused Kindle guide from Henry Sinclair, part of The Home Gardener's Guide series. It's designed for people who want to start growing onions but don't have a lot of space or experience. The book covers everything from selecting the right onion variety for your climate to preparing soil and containers, managing water and fertilizer, and dealing with common pests. At just 80 pages, it's a quick read that gets straight to the point.
The standout quality here is its focus on small-space gardening. If you live in an apartment with a balcony or have a tiny backyard, this guide gives you practical advice on container growing and maximizing limited space. The step-by-step instructions are clear and easy to follow, even if you've never planted a seed before. The troubleshooting section is especially helpful for beginners who might run into issues like yellowing leaves or bulb rot.
That said, the book's brevity is both a strength and a weakness. While it's great for a quick overview, more experienced gardeners might find the coverage of advanced topics like disease prevention or organic pest control too shallow. The digital format is convenient, but the lack of X-Ray or Word Wise features means you can't easily look up terms or get quick definitions. Also, there's no print version available, which might disappoint readers who prefer physical books.
Overall, Grow Your Own Onions at Home delivers exactly what it promises: a no-nonsense guide for beginners to start growing onions in small spaces. It's not a comprehensive encyclopedia, but it doesn't try to be. If you're new to gardening and want a cheap, easy way to get started with onions, this book is a solid choice. Just don't expect in-depth coverage of every possible scenario.
Pros
- Extremely beginner-friendly with step-by-step instructions for each sprout variety.
- Compact book packed with actionable info for small-space growing.
- Highlights proven health benefits like weight loss and increased energy.
- Includes practical tips from real users like adapting for van life or apartments.
- Very affordable and easy to read in one sitting.
Cons
- At 32 pages, some readers may find it too brief for advanced techniques.
- Lacks specific recipes, only offers general suggestions for using sprouts.
- Focuses on small-scale production; not ideal for high-volume sprouting without extra investment.
How to Sprout Raw Food by R.J. Ruppenthal is a compact, no-nonsense manual for growing your own organic sprouts indoors. Whether you live in a tiny apartment, a van, or just want fresh greens during winter, this guide shows you how to produce a steady supply of wheatgrass, bean sprouts, microgreens, and more using only jars, trays, or an automatic sprouter. The book emphasizes that you need zero sunlight or soil, and the entire operation fits on a kitchen counter or the top of a fridge.
The standout feature is its breadth. Ruppenthal covers over a dozen sprout categories including grains, legumes, seeds, and even seasoning sprouts like basil and mustard. Each variety gets clear instructions on soaking, rinsing, and harvest times. Real-world user feedback confirms that the methods work brilliantly for van lifers and urban gardeners alike. One reviewer grew a thriving garden in an 8-passenger minivan using a 4-tier sprouting system. Another discovered that dried lentils from the pantry can become crunchy salad toppings in just a few days. The book also links to recommended sprouters and seed companies, which saves hours of research.
The book is physically small and self-published, but the information is solid and well-organized. It reads like a knowledgeable friend walking you through the process. There are black-and-white photos that show the stages of growth, though they are not high-resolution. The language is straightforward, and the author clearly knows the subject. If you are looking for a quick start to sprouting without fluff, this delivers.
A slight drawback is the brevity. Some readers felt the 32 pages left them wanting more, particularly on advanced topics like large-scale production or troubleshooting. The book also does not include detailed recipes; it only suggests ways to add sprouts to salads, sandwiches, and cereals. However, for the price, it is an excellent entry point. Those needing more depth can supplement with online resources or the author's other books.
Overall, How to Sprout Raw Food earns a solid recommendation for anyone curious about growing their own fresh, organic greens indoors. It is especially valuable for people with limited space, those on a budget, or anyone aiming to increase raw food intake without the hassle of a full garden. Practical, encouraging, and full of proven tips, it is a worthy addition to any homesteader or health enthusiast's library.
Publisher: CreateSpace Independent Publishing Platform
Publication Date: August 25, 2012
Edition: 7/26/12
Language: English
Print Length: 32 pages
ISBN-10: 1479197688
ISBN-13: 978-1479197682
Item Weight: 2.88 ounces
Dimensions: 6 x 0.08 x 9 inches
Best Sellers Rank: #185,628 in Books; #27 in Raw Cooking; #118 in Organic Cooking
Customer Reviews: 4.4 out of 5 stars (273 ratings)
Pros
- Four different onion types in one affordable pack.
- Seeds are non-GMO and heirloom, preserving traditional flavors.
- Fast germination reported by several customers, with sprouts visible in under 3 days.
- Eco-friendly packaging with labeled envelopes for easy organization.
- Includes both short-day and long-day varieties for flexibility across zones.
Cons
- Some customers reported fewer seeds than the advertised 250 per variety, with counts as low as 60-80 seeds in some packets.
- Not all varieties may be suitable for every growing zone; for example, long-day onions may not mature well in northern climates.
- A few customers experienced poor germination with some of the seed packets.
The Sunutri Seeds Onion Variety Pack is a practical choice for home gardeners who want to grow a mix of onion types without buying multiple packs. This set includes four heirloom, non-GMO varieties: Evergreen Hardy White Bunching (scallions), Red Creole, White Sweet Spanish, and Yellow Sweet Spanish. With 1000 seeds total, it's designed to give you a steady supply of fresh onions for salads, cooking, and storage. Whether you're a beginner or an experienced grower, this pack offers a nice range of flavors and uses.
In terms of real-world performance, many customers report fast germination with sprouts appearing in just a few days. The seeds are individually labeled and separated, which makes planting straightforward. The eco-friendly packaging is another plus, as noted by reviewers who appreciate the sustainable approach. However, a few users pointed out that the seed count per variety was lower than expected, with some packets containing only 60-80 seeds instead of the advertised 250. Germination rates seem decent overall, but they're not consistent across all varieties based on feedback.
The design and build of the product are simple but functional. Each variety comes in its own small envelope inside a larger pack, and the labeling is clear. The seeds themselves are tiny, which is typical for onions, but the packaging helps keep them organized. One drawback is that the variety selection may not be ideal for all growing zones. For instance, long-day onions like Red Creole may struggle in northern areas, while short-day sweet Spanish types are better suited for southern climates. It's worth checking your zone before planting.
Honestly, the main drawbacks are the potential for inconsistent seed counts and the need to match varieties to your region. Some customers also mentioned that not all seeds germinated, which can happen with any seed pack but is worth noting. On the plus side, the mix of scallions and storage onions gives you flexibility in the kitchen, and the price is reasonable for four heirloom types.
Overall, the Sunutri Seeds Onion Variety Pack is a good value for gardeners who want to experiment with different onion flavors. The fast germination and eco-friendly packaging are strong positives, but be aware of possible seed count discrepancies and zone limitations. If you're looking for a diverse onion seed collection and can work around these minor issues, this pack is worth a try.
Pros
- Compact and focused guide with actionable companion planting advice.
- Covers a wide range of benefits from pest control to water conservation.
- Part of a series on low-maintenance fruit gardening indoors.
- Straightforward language suitable for beginner and intermediate gardeners.
Cons
- Very short at 44 pages, limiting depth on each topic.
- Only one customer review, so effectiveness isn't widely validated.
- Niche focus on onions may not appeal to general vegetable gardeners.
If you're looking to get more from your onion patch without resorting to chemicals or complex routines, this little ebook from Kingston Publishing packs a surprising amount of know-how. Part of the Low-Maintenance Fruit Gardening Indoors series, it zeroes in on companion planting specifically for onions. The author clearly understands the practical side of gardening: pairing crops to naturally handle pests, improve soil, and even boost flavor.
The book shines in its concise explanations of how and why certain plants work together. You'll find specific pairings like marigolds to deter aphids and beans to fix nitrogen, all backed by straightforward reasoning. It also covers space efficiency, water use, and weed suppression. For a gardening reference, it's refreshingly direct and avoids fluff. The information is organized in a way that makes it easy to reference later.
Given its length (just 44 pages), don't expect exhaustive detail or scientific depth. The book stays focused on the essentials, which is fine for someone who wants a quick primer before planting. The lack of X-Ray and Word Wise features in the Kindle edition means you can't easily jump between topics. Still, the content that's here is solid and practical for backyard gardeners or indoor container growers.
The main drawbacks are the limited user feedback (only one rating at 3.0) and the niche focus. If you only grow onions occasionally, this might feel too narrow. The price is free, which makes it a no-risk download for curiosity. However, the single review doesn't give much confidence in real-world results. The book would benefit from testimonials or before-and-after examples.
Overall, Onion Companion Plants is a useful, no-nonsense guide for gardeners who want to leverage natural relationships in the garden. It's best for beginners ready to experiment with companion planting or for experienced growers looking for a quick refresh on onion-specific strategies. At zero cost, it's worth a look if onions are part of your plan.
Pros
- Simple, no-nonsense process that anyone can follow
- Covers a broad range of sprout varieties in one short book
- Practical recipes that make it easy to use sprouts daily
- Lightweight and compact ideal for quick reference
- Affordable price point for a specialized guide
Cons
- At only 59 pages, some readers may want more depth
- No illustrations or photos could make steps less visual
- Relies solely on the jar method no alternative techniques
How To Sprout by Suzi Livingstone is a no-fuss guide aimed at anyone who wants to start growing fresh sprouts at home. The author strips away complexity and focuses on a single proven method: sprouting in jars. This makes it an excellent choice for beginners or anyone who has tried and failed with more elaborate setups. The book covers a wide range of sprouts including alfalfa, bean, broccoli, wheatgrass, pea shoots, and lentils so you can experiment with flavors and textures.
What sets this guide apart is its straightforwardness. You won't find lengthy theory or unnecessary details. Instead, it takes you from selecting seeds to harvesting crunchy, nutritious sprouts in just a few days. The real standout is the recipe section at the back. It offers creative ways to use your sprouts in everything from smoothies to main dishes. This removes the guesswork of what to do with your harvest.
The book is printed in a compact 6x9 inch format with 59 pages. It's lightweight and easy to keep in your kitchen drawer. However, the lack of photographs or diagrams is a notable omission. Visual learners might miss step-by-step images. The text is clear enough, but a few pictures could have made key steps more intuitive. Also, the guide sticks strictly to jar sprouting. If you're looking for tray or bag methods, you'll need another resource.
Given its low price and focused content, this is a practical buy for urban gardeners, health-conscious eaters, or anyone who wants to add fresh greens to their diet without a garden. Just keep in mind that at only 59 pages, it's a quick read rather than an encyclopedia. For the price, it delivers exactly what it promises: a simple, reliable way to grow sprouts at home.
Verdict: A solid, beginner-friendly resource for jar sprouting. Pair it with a bag of organic seeds and you'll be crunching on homegrown sprouts within a week. While not comprehensive, it covers the essentials with clarity and includes bonus recipes that add real value.
Frequently Asked Questions About Planting Sprouted Onions
Here are some common questions gardeners have when learning how to plant sprouted onions.
Can you plant a sprouted onion from the grocery store?
Yes, you can plant a sprouted onion from the grocery store. Look for onions that are firm and have healthy green sprouts. Remove any soft or moldy layers before planting. This method works best for producing scallions or smaller bulbs, especially if you plant them in nutrient-rich soil. For more tips on starting plants from kitchen scraps, check out our seed category.
How deep should I plant a sprouted onion?
Plant the sprouted onion so that the top of the bulb is just below the soil surface, with the sprout pointing upward. Cover the bulb with about one inch of soil. If the sprout is very long, you can leave part of it exposed. Water gently after planting. Deeper planting may cause the bulb to rot, so keep it shallow. For container gardening advice, see our planter category.
Should I remove the outer layers of a sprouted onion before planting?
It is a good idea to peel off loose, papery outer layers, especially if they look dried out or damaged. This helps prevent rot and allows the roots to emerge more easily. If the onion has multiple sprouts, you can carefully separate them and plant each one individually for more plants. Using a balanced fertilizer after planting can support stronger growth. Learn more in our fertilizer category.
Can I plant sprouted onions indoors?
Absolutely. Plant sprouted onions in a pot with drainage holes and quality potting mix. Place the container in a sunny window that gets at least six hours of light daily. Water when the top inch of soil feels dry. Indoor planting works well for growing green onion tops, which you can harvest repeatedly. For more indoor plant care ideas, visit the plant category.
How long does it take for a sprouted onion to grow into a full onion?
If you plant a sprouted onion in spring with adequate sunlight and water, you can expect green tops in a few weeks. For bulb development, it may take 90 to 120 days depending on the variety and growing conditions. Sprouted onions from grocery stores are often short-day varieties, so they may form bulbs earlier in the season. Keep the soil consistently moist and weed-free for best results. For more gardening essentials, browse our grow lights category if you are growing indoors.


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