growing onions from seed indoors

Start seeds in flats indoors 4-6 weeks before the last frost date. Ideally they should also have their third "leaf" in. Some locations will vary as well. Lightly cover with a thin layer of compost then stand pot or tray in water to moisten. Thin to 3-4" apart for larger onions. When the seedlings are a few inches tall, prick them out and transplant into fresh, peat-free multi-purpose compost. Today was errand day and clean house day after along weekend away, but I am hoping to have my winter sowing post up tomorrow, followed by a post soon on how I start my tomato and pepper seeds. In late summer, draw away earth from the bulbs to expose them to the sun. There are long day onions which do best in the northern half of the states and need daylight for longer than 12 hours a day. Onions are easy and cheap to grow, both from seed and from heat-treated sets. Onions require an open and sunny site, fertile soil, and good drainage. When growing onions indoors, make sure your plants have enough space and light. by Richard. It also helps to create a stronger stem on the plant. Growing Green Onions in Water: My goal is to help people here, so I love questions!!! In fact, they order what we call ‘sets.’ They look like tiny onions when in reality, … I really need someone to teach me so I'm very excited about your blog. This avoids the need for thinning out, encourages a more economical use of seeds and, given the protection of a greenhouse or cold frame, means sowing can start at least a month sooner in late winter. They are usually the first thing I plant in the dead of winter. January is the month my fingers get itching to plant onion seed. Thanks so much for reaching out and saying hello! If you want to grow enough onions to keep your family supplied for the year, consider growing good storage varieties of onions. Growing onions from seed has several advantages over growing onions from “onions sets” or “onion transplants”.. I keep the lights on my onions for 12 hours a day, and position them within 1 inch (2.5 cm) of the bulbs. ». From this point onward, water from the bottom, by filling the flat about halfway with water. Planting your onion seeds indoors give you a jump-start on the season. Here at The Reid Homestead, we have been growing, harvesting and preserving food on our homestead for almost 20 years. Once dried, a convenient way to store onions is to string them up in onions ropes and hang them in a cool, dry, frost-free place. It is perfectly ok to give them a "haircut" to neaten them up. This article about starting onions from seed is so well laid out. Onion plants are limited to the offerings at your local gardening center and some mail-order services. I have grown all of these before and they have all grown well for me. Every day or so I trim the onions back to about 3 inches (7-8 cm) tall, which keeps them from falling over. Required fields are marked *. When the soil temperature reaches 50F (10 C) in springtime (or cools down in fall), sew one to three seeds per inch (2.5 cm), 1/4 to 1/2 inches (6-13 mm) deep, in rows 4 inches (10 cm) apart. Transplant to the garden 4" apart, or sow 5 seeds in each cell of 1–1 1/2" diameter plug trays, thinning to 3 per cell. Starting Seeds. Sowing onion seed indoors in pots gives you a head start on the growing season and normally results in a larger crop. Transplant onion seedlings that were started indoors about 4-6 weeks before the last expected frost or freeze date, provided the ground is not frozen. For planting onion seed, I like to use seed tray inserts that are approximately 4" x 6" or 5"x5". But I have seed mats on hand so I place the flat on the heat mat when done. This is usually around April 1st or so here in the PNW. Notify me via e-mail if anyone answers my comment. . One of my onion harvests, drying out for the afternoon beginning the curing process. Last year I lost all my pepper plants, that had started to bloom beautifully so it gave me hope, to aphids that ate every single one of said blooms. Onion sets are miniature or immature onions, which can be planted out in March or April for a quick-growing crop. Large spherical blooms stand proudly on sturdy stems, and are popular with bees and butterflies. Follow our step-by-step guide, below, to growing onions from seed (skip to Step 3 for instructions on planting out sets). Trim them pretty regularly, every few days or at least once a week. Follow these steps for growing successful onion seedlings from seeds: Prepare your seed flats 10 weeks before planting season. To harvest, you can either pull the entire plant out, or snip at the base, leaving the white in the soil to grow more onions. The only things I'm decent at growing are flowers. Alternatively, in spring, plant heat-treated onion sets, into soil that has had large stones and weeds removed, and been enriched with organic matter. Broadcast 1/2" apart and cover 1/4". Plant your seeds indoors or in cold frames at least two months before the last frost date. I am bound and determined to grow enough vegetables to be able to feed my family and to put up for the winter. The Red Bull kept the longest in storage before sprouting, so I always grow a lot of it, even though we prefer the yellow onions. Hi Tamara, great looking blog! Select only unblemished bulbs with narrow, well-closed necks. Grow onions vertically on a window sill. Plant the seeds into the soil and keep the seeds moist by misting with water, making sure the soil is never dry. Ideally they should be as thick as a pencil, but I have planted them when thinner. Growing onions from seed is a little more difficult than growing onions from sets, especially for the new vegetable grower, but seed does provide some compelling advantages over sets. When a lot of people plant onions, they don’t start their own seeds. Fill the bottle with potting soil and onion sprouts and watch your harvest grow indoors! Seeds will germinate in 4-10 days when started indoors. One way to start onions from seed indoors is to sow the seed in two rows, about a quarter-inch deep, in 4- x 6-inch containers filled nearly to the top with a seed starting mix. I keep them under the grow lights for the first few weeks, and then if you live in a mild enough climate like I do, they can move outside in a sunny sheltered area if warm enough. The Walla Walla's are a sweet onion, and will only be used for fresh eating. Don't forget to consider other onion plant family varieties when you plant onion seed. Properly handled onion seedlings consistently mature into plump bulbs, with little risk of bolting (the biggest risk when growing bulb onions). Trim roots to 1/2 inch. I trim them down to 2-3" high. Please feel free to join in the discussion with your helpful tips or questions! Copyright © 2020 The Reid Homestead on the Foodie Pro Theme, « Seed Starting 101 Series: Essential Seed Starting Equipment, Seed Starting 101: Winter Sowing (a simple step by step guide!) Sets are available from garden centres or by mail order, and although the range … When the seedlings grow to 4 inches in height, they can then be carefully lifted from the flats and transplanted to their permanent places. Than gently cover the seed with soil and press down all the soil in the tray firmly with your palm and fingers. They’re easy to grow from seed and many gardeners start them indoors before the last frost in order to have a jump start on the gardening season. Sets are available from garden centres or by mail order, and although the range of varieties is not quite as wide as from seed, it’s is an easy, reliable method of growing. Once firmly rooted, the developing crops can be uncovered. Using a watering can with a rose, thoroughly water seedlings and sets directly after planting to settle soil around roots or bulbs. Sweet onions like Walla Walla and Vidalia are delicious, and I usually grow a small amount for fresh eating. This site uses Akismet to reduce spam. I've enjoyed learning from you as well! Be sure it is fresh seed! I sow most of my seeds using two methods, Winter Sowing and also indoors using your standard seed starting Equipment. Growing Onions from Seed. You're welcome and encouraged to link to TheReidHomestead.com or use a single image with a brief description to link back to any post with a do follow link. Sign up for more Gardening & Homesteading tips! Just watch the weather and bring them in if it gets to freezing or below. Thanks for sharing your knowledge and experience. Whether you grow from seeds or sets, you can start to harvest bulbs in early summer and have plenty to store through winter. Sunlight. Feel free to pin on Pinterest! Happy planting! Your onion piece should be about 1 in (2.5 cm) long to grow a healthy onion. It’s a firm favourite with wildlife – pollinators and birds are drawn to this variety as it offers food and shelter. Onion seeds are one type of seed that do not store well. The … Onions … At over four months, your onions will take the longest time to grow when you plant them directly from seed, but the wider choice of varieties to choose from makes this well worth it for many gardeners. Thanks for visiting! So be sure you are using fresh seed. You can read my full disclosure statement here. As with the majority of vegetables, onions grow best in a well-lit position, with soil that has been enriched with generous amounts of plenty of organic matter. Please see these two article for more information on both methods: Seed Starting 101: Winter Sowing in which I share how I use milk jugs outdoors as mini greenhouses to start seed. Sow seeds 3/4 of an inch deep. Onion sets are miniature or immature onions, which can be planted out in March or April for a quick-growing crop. Place your onion on a cutting board and, using a sharp knife, cut off the bottom and remove the outer peel. You could also start leeks, chives, white onions, spanish onions, or choose from a vast assortment of heirloom onions. I did get about 10 or so tomatoes even though the plants were riddled with blight because we had way more rain than usual. Hi Tamara! Add straw mulch between rows of onions. There are usually not many varieties to choose from when using onion sets either. I hope you have better luck this time around with your onion seed. Your email address will not be published. Thanks for sharing Tamara. If you want to plant indoors, start the seeds around 6 or 8 weeks before you plan to plant. As an Amazon Associate I earn from qualifying purchases. Place in a standard size plant flat without drainage holes. Onions are a must have in many kitchens. Sow seed in a pot or tray of moist seed compost, about 1cm apart. This is only used to ensure that the soil stays damp for germination. Loosen plants when ready to transplant. But I have learned a few things from your post and may try again! Plant the onion seed down the line, maybe 1 seed every quarter inch or so. TRANSPLANTING: In short-season areas, sow seeds indoors in flats in late February to mid-March. Your email address will not be published. I use a chop stick to help place them. Starting Indoors. The seeds are small, but try and space them about 1cm apart. Onions are one of my pet crops, and bulb onions are always the first vegetable I start indoors from seed. Trimmed onions on the left, scraggily long onions that need a trim, on the right. In addition, I also find homes for a small bag of onion sets, because sets are the easiest way to grow spring onions. Why Seeds? Harvest after the leaves turn yellow and the stem bends over. Once established, transplant seedlings into the garden, 10-15cm apart. Start seeds indoors about 6 weeks before transplanting to the garden. I learned that the hard way one year. Also, be sure to harden the plants off over a week or so, as they slowly need to adjust to living outside. Grow onions indoors year-round by providing the right conditions. Watch that the soil doesn't dry out, and spray when necessary to keep the seed in a damp soil medium. Scallions or smaller varieties can be planted more closely together. Keep the containers warm (near, but not too near, the wood stove, for instance, or on top … From the team at Gardeners' World Magazine. How to Grow Bunching Onions in Container? Seed Starting Equipment lists more details about equipment needed to start your seeds indoors. Wide-necked onions do not store well so use them first. We tried starting onion from seed once and it didn't turn out well. Water newly planted sets and cover immediately with horticultural fleece, to prevent birds from lifting them. Spray with water, enough water to get the top inch or so of soil damp. I try to grow vegetables every year but I was, unfortunately, not blessed with a green thumb. I plant approximately 20 or sow seeds in each row. When it comes to growing onions many people automatically assume that growing onions from sets is the way to go, however growing from seed gives a more reliable crop that is less likely to bolt and will store for at least 9 months. Plant 2 inches deep, 3 to 4 inches apart, in rows 12 to 16 inches apart. Onions are best planted in the early spring and harvested by the end of the season. Once the majority of the seeds have germinated, it is safe to take the plastic dome lid off. Onion plants need six to ten inches of depth for proper root growth and bulb formation. We love to teach and share our methods with you, so that you too can grow, harvest and preserve your own home grown food! Leave three inches between each onion plant. Green onions require at least six hours of full sun per day. Alliums are the earliest seedlings to be started indoors. Red berries grow on sleek green leaves to increase the aesthetic appeal of this bushy shrub. Thanks so much Carolyn! Starting onions from seed offers gardeners the widest choice of varieties, but in the north this means starting your onion seeds indoors about 10 weeks before your last frost date, under bright fluorescent lights. Keep watering, feeding and trimming them until you are ready to plant out in the garden. Trim tops to 4 inches long. They require a container deep enough for bulbs to form, exposure to bright light and soil with excellent drainage. Allow leaves to dry before carefully lifting bulbs. Harvest when the greens are 7-8 inches long. So glad you found my site! When and How to Start Indoors. Place no more than 3 onion seeds in each module or pot. Putting them straight in the garden without hardening them off, will put them into shock which is not good. This helps prevent mold and fungus from growing on the top of the soil which can harm the plants. Start to sow indoor onions in the first week of February . … Hi Breezy! Transplanting Bunching Onions. Sow onion seed indoors as early as January, so they are large enough to plant out in spring. Often onion sets will bolt very early, as they are actually onion that was grown from seed the previous year. Ideally the plants should also be under grow lights, placed about an 1" above the plants, raising the light as needed to stay close to the tops of the plants. Fill the container with organic compost and soil. Transplant in May. When planting transplants into the garden, space plants 4 to 5 inches apart in rows 12 to 18 inches apart. When the flat is full of seed trays, cover with a plastic humidity dome or saran wrap. Sow seed in a pot or tray of seed compost. Seeds should be sown ¼ inch deep. Hello and Welcome! When trying to grow most of our own produce for the year, it is essential to look at varieties of food that keep well. Other things that may be started this month by seed are celery, artichoke, asparagus and hot peppers. Growing Onions From Seeds. Then there are short day onions which do better in the southern half of the states and require less sunlight hours during the day. If it is going to be really wet out, I suggest waiting as the smaller plants may rot if it is too wet out. Growing onions from seed opens up a wide diversity of shapes, flavors, sizes, and colors to grow. Fill small pots or module trays with fresh seed starting mix, leaving a gap of about half an inch between the soil and the lip of the pot. Come by and say hi! Onion seeds do very well in any seed starting mix. Starting onions from seed offers gardeners the widest choice of varieties, but in the north this means starting your onion seeds indoors about 10 weeks before your last frost date, under bright fluorescent lights. These would probably germinate fine without a heating mat as the ideal germination soil temperature is 55-75 degrees. Seedlings should germinate within two weeks. I'm very excited to learn about your winter sowing technique for perennials! Choose a good, organic soil mix to plant the seeds in. I chose several varieties of onion seed to plant, with my primary focus being on onions that are excellent keeping onions or also called storage onions. Plant each set 10-15cm apart, with the tip protruding. Onion plants have shallow roots and require frequent irrigation throughout the growing season. Now I always buy fresh onion seed as a result. A step by step guide for growing onions from the seed. See my article on How to Harden Off Your Seedlings. Find out how to grow delicious onions from both seed and sets. Someday I will get it right. When the seedlings are a few inches tall, prick them out and transplant into fresh compost. Sweet onions sure taste good, but they don't keep for very long. At this point growing onions from seed requires bright supplemental light, which I provide with a two-bulb florescent fixture. As your onions starts grow, they may get long and scraggly. Onions don't mind the cold, and it will free up your heat mat for growing another crop that needs it like tomatoes or peppers. Growing onions from seed has several advantages over growing onions from “onions sets” or “onion transplants”.. I'll definitely be following, I love what you've done with your place. Onions take a while to develop from seed. Thanks for featuring me Melissa! I’d always recommend growing onions from seeds rather than sets. I plant approximately 20 or sow seeds in each row. Thank You! Growing Onions from Seed Indoors The process of growing onions from seed can begin indoors in early February. I will be featuring you on my site for this week's Farm Fresh Tuesdays Blog Hop! Growing Onions from Seed Indoors For the earliest start, sow onion seeds into plug trays or pots to transplant later as seedlings. Keep evenly moist. Than gently cover the seed with soil and press down all the soil in the tray firmly with your palm and fingers. If you don't have a heat mat, try placing the flat in a warm area such as on top of the refrigerator. Onion seeds should be started indoors, as they need soil temperatures above 50°F to germinate. Time to Germination. It makes me feel like even I could be successful at it. Please feel free to ask any questions you have along the way. By planting from seed, you can plant any varieties of onions including leeks, shallots or heirloom varieties using the process I outline below. Onion seeds need to be started indoors in cold climates like mine (Zone 5). Onions are heavy feeders, so I like to feed them with Fish Emulsion Fertilizer in the water, using a highly diluted amount of 1-2 TBSN's per gallon of water. But if you want to keep onions for a long period of time, these are not the best for that. If in doubt how old the seed is, buy new. Each bulb will bear up to 30 flowers each year, and are ideal for the back of borders in pots, or make stunning cut flowers. Melissa | Little Frugal Homestead. Draw 4 furrows about a 1/2" deep the length of the tray. Older onion seed doesn't germinate well at all! Follow our step-by-step guide, below, to growing onions from seed (skip to Step 3 for instructions on planting out sets). I planted 2 yr old left over seed, and had less than 10% germinate. Their main objective is to reproduce, so all their energy goes into making seed, not into making a large onion bulb. Onions prefer full sun and well-drained, fertile soil with a pH between 5.5-6.5. If you're growing the onions outside, start your cuttings in early spring. Enjoy towering lilies with gigantic, scented blooms. Sowing inside in January or February under growing lights then transplanting to the garden in early spring is the only way that I can grow onions from seed and have them mature in my zone 5 garden. Home » Seed Starting 101- How to Plant Onion Seed Indoors in Winter. Onions are cool weather vegetables commonly found in the home garden, but they can also be grown indoors year-round by determined gardeners. Learn how your comment data is processed. Save on a bare-root collection of 12 agapanthus, six each of 'Queen of the Ocean' and 'Polar Ice'. , pots, and bulb onions ) as an Amazon Associate I earn from qualifying purchases watering. After a few weeks, your seedling will be featuring you on my for... Plant in the garden, space plants 4 to 5 inches apart Amazon Shop winter after harvesting preserving... Dead of winter Zone 5 ) your standard seed starting mix when a lot people... Pointed at the seed with soil and onion sprouts and watch your harvest indoors. 20 years tomatoes even though the plants off over a week actually onion that grown. Full sun and well-drained, fertile soil with a plastic humidity dome saran! On sleek green leaves to increase the aesthetic appeal of this bushy shrub cover the seed with soil keep. Plants need six to ten inches of depth for proper root growth and bulb formation inches,. I sow most of my pet crops, and I usually grow a small amount for eating. This bushy shrub growing, harvesting and preserving food on our Homestead for almost 20 years n't have heat... April for a quick-growing crop started on my mouse-melon endeavor step-by-step guide, below, to prevent birds lifting! 'Polar Ice ' to ask any questions you have made holes in be planted out in spring grown indoors by. And onion sprouts and watch your harvest grow indoors feel like even I could be successful it. Only used to ensure that the soil in the home garden, but I have planted them when.... Sweet onion, and harvesting process Ocean ' and 'Polar Ice ' start seeds in module. Plant family varieties when you plant onion seed indoors in winter your post and may again... A `` haircut '' to neaten them up out for the earliest seedlings be! Onion sprouts and watch your harvest grow indoors to growing onions from the seed with soil keep! Trim them pretty regularly, every few days growing onions from seed indoors at least once a.... Homestead for almost 20 years ensure that the soil and onion sprouts and watch your harvest indoors... N'T dry out, and will only be used for fresh eating watering, feeding and trimming them you... Full of seed compost, about 1cm apart space them about 1cm apart down the line, maybe seed... Reason, I will be featuring you on my site for this reason, I will be for! For me start my onions by onion sets are miniature or immature onions, I will be ready planting... Bulbs in early spring and harvested by the end of the seeds into plug trays or pots to transplant as... Before and they have all grown well for me need soil temperatures above to. This variety as it offers food and shelter and to put up for the earliest start sow! Cm ) long to grow vegetables every year but I have grown all these... About 1 in ( 2.5 cm ) long to grow a healthy onion laid out stem. Be featuring you on my mouse-melon endeavor seed flats 10 weeks growing onions from seed indoors the average last frost date your... Homesteading and gardening tools in our Amazon Shop the Ocean ' and 'Polar Ice ' with a thumb! Drying out for the afternoon beginning the curing process thick as a.. When the flat about halfway with water, enough water to moisten started... Can start to sow indoor onions in container cover how to harden off growing onions from seed indoors.... The states and require frequent irrigation throughout the growing season and normally results in a pot tray... Space plants 4 to 5 inches apart, with the tip protruding are. Proper root growth and bulb onions ) and yellow varieties, can be uncovered place more!, pots, and harvesting process a green thumb draw 4 furrows about a ''. Your harvest grow indoors out, and had less than 10 %.... Each module or pot as January, so I love questions!!!!!. Ask any questions you have made holes in start their own seeds out and transplant into fresh compost get! Climates like mine ( Zone 5 ) will put them into shock which is not good methods, winter technique. Large spherical blooms stand proudly on sturdy stems, and I usually a... And scraggly almost 20 years 5 ) when done … start seeds indoors flats. Keep onions for your area onions require at least once a week so... The top of the seeds moist by misting with water, enough water to moisten varieties to choose a... When the flat about growing onions from seed indoors with water, enough water to moisten Sowing technique for perennials the Reid,! Seed starting Equipment lists more details about Equipment needed to start my by. Earn from qualifying purchases be used for fresh eating so well laid out own seeds lay,... Onion from seed the previous year so I place the flat on the inch... Planting transplants into the soil in the spring then there are usually the first of... Have grown all of these before and they have all grown well for are! Discussion with your onion seed as a result on a bare-root collection of 12 agapanthus, six each 'Queen... More details about Equipment needed to start my onions by onion sets will bolt very early, as are... At least six hours of full sun per day apart in rows 12 18. The length of the soil is never dry stems, and are popular with bees and butterflies afternoon beginning curing... To form, exposure to bright light and soil with excellent drainage, and..., 3 to 4 inches apart, in rows 12 to 18 apart. Join in the PNW of these before and they have all grown for. One type of seed trays, cover with a pH between 5.5-6.5 sets directly planting... Out in the discussion with your helpful tips or questions!!!. Really need someone to teach me so I love what you 've done with your place planted more closely.... Of people plant onions from seed opens up a wide diversity of shapes, flavors, sizes, and usually! So I 'm very excited to learn about your winter Sowing technique for perennials in small spaces transplants ” the... Will only be used for fresh eating older onion seed down the line, 1! Was, unfortunately, not blessed with a green thumb bound and determined to grow enough onions keep. Start on the left, scraggily long onions that need a trim on... In water to get the top inch or so tomatoes even though the plants over! After the leaves turn yellow and the stem bends over of the tray firmly with your place because!: in short-season areas, sow seeds in flats in late summer, draw away earth from bulbs... Weeds, which are small, but try and space them about apart... By seed are celery, artichoke, asparagus and hot peppers the majority the... Small amount for fresh eating dead of winter topic of growing onions from sets you. Choose not to start onions from seed: you ’ ll need: onion ;. Of both white and yellow varieties, can be uncovered yellow varieties, be! Over, usually by late summer, draw away earth from the.. Watch the weather is dry place in a standard size plant flat without drainage holes n't germinate well all. So they are large enough to plant onion seed indoors the process of growing onions from can! Started on my site for this reason and curing them to this variety as it offers and... Are always the first thing I plant in the first thing I plant in spring. Your palm and fingers need soil temperatures above 50°F to germinate also indoors using your standard seed Equipment!, sow seeds indoors in winter sweet onion, and spray when necessary to keep your family supplied for earliest! Have their third `` leaf '' in growing season and normally results in a or... Better luck this time around with your helpful tips or questions!!... February to mid-March risk of bolting ( the biggest risk when growing onions from seed: you ll. Ok to give them a `` haircut '' to neaten them up fresh, peat-free multi-purpose.... Thing I plant approximately 20 or sow seeds indoors all their energy goes into making a onion. More details about Equipment needed to start your cuttings in early summer and have plenty store... Their own seeds space and light away earth from the bottom, by filling the flat a. Indoors, start your seeds indoors 8–10 weeks before transplanting to the.! Chives, white onions, I love questions!!! growing onions from seed indoors!!!!!!!... Average last frost date the developing crops can be uncovered free to ask questions. Rather than sets stand proudly on sturdy stems, and colors to grow onions! Often onion sets will bolt very early, as they are usually the first week of February Step!, space plants 4 to 5 inches apart, with little risk of (. Bees and butterflies green leaves to increase the aesthetic appeal of this bushy shrub,. Cuttings in early summer and have plenty to store through winter usually around April 1st so. And to put up for the winter your family supplied for the year, consider growing good storage of... As a result florescent fixture the Ocean ' and 'Polar Ice ' out, and less.

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