", "Hello! Are row covers helpful to onions through the winters here? Once my onion seedlings are in the ground, the war with weeds gets into full swing. Can I start onions from seed, in late summer, so that they are ready to go (grow) as early in Spring as possible? Watering onions and other plants from above in the evening can leave plants with wet foliage overnight. With either type you would start seeds in September or October for harvest in late spring. spending bill, NFL team strips QB of captaincy after nightclub visit, Debt cancellation backed by more than half of U.S.: Polls, Trump unpredictable in the last days of his presidency. Every day or so I trim the onions back to about 3 inches (7-8 cm) tall, which keeps them from falling over. ", "I have planted my onion sets quite deeply in the soil- they are totally submerged and invisible! Five Easy Answers. My husband is the one who sowed them so I don't know how deep he went, from what I have read they only need to be surface sown. Commercial growers use systemic pesticides (another reason to grow your own or buy organic. Thanks for this informative website. I keep the lights on my onions for 12 hours a day, and position them within 1 inch (2.5 cm) of the bulbs. ", "It sounds like there is something about the site or soil the onions find objectionable. ", "Greetings,
We left out many small details, which I've been keeping track of in recent weeks as I've been growing onions from seed myself. Much can go wrong, because onions are biennials that will bolt/bloom if the sets are too large, or if the newly planted sets are exposed to cold growing conditions. I only have two small sprouts to my chives its been almost two weeks should I toss them and start over? The transplants that looked so frail eventually all developed healthy thick leaves and have started bulbing nicely. ", "Onions may deter grazing pests like deer and rabbits, which would be a good reason to grow them around the outside edge of the garden. With chives, it's easier and much, much faster to start with a purchased clump. Pitch them and start over if your frost date is not until May, or work with purchased sets and seedlings this year...Rebbi, you can still start onion seeds for another couple of weeks, but starting indoors works best because you don't have to fight weeds at first. ", "Thanks for the quick response Barbara, I may have inadvertently misled you. I haven't trimmed them, could that be an answer? I was thinking of trying to control them using a neem oil spray- has any body tried this? Thanks so much for your in-depth, step-by-step article, and for all of your personalized advice. Is this OK or should I cover them with a polythene cloche/hoops? Onion seedlings respond to transplanting by making strong upright growth, which I keep trimmed back to about 5 inches (12 cm) high. I transplanted the seedlings into the ground several weeks ago. This time of year, you can start seeds of "Japanese" onions, which winter over and bulb in late spring. ", "I want to grow onions from seed for my own consumption. I have come across a type 'Jambar F1' and I am wondering if any one knows its other name by which it is known in Europe. Thanks! ", "Awesome! Once the onions reach scallion-size, harvest them individually with a knife until the remaining onions are spaced 3-4” apart. Then, when ultimately I plant outside, which may be several weeks later, again, how deep should I plant? I live in central Maine and I planted onion sets in the spring. If planting outside, are they ok to be left over winter until harvest next year with no protection? At that point, think about transplanting them to the garden. They are bright! Outside so they are getting the sunshine. If not, is it too late to start the seeds indoors this year? And I planted Spanish yellow onion seeds. Try letting them grow longer in their seedling containers, even if they are crowded. I planted 2 yr old left over seed, and had less than 10% germinate. Bulb onions, unfortunately, grow very slowly for the first couple of months, and are thus very easily overtaken by weeds. Sorry for so many questions but i'm a novice at onions. Keep up the good work", "Hello Barbara, I've had very little success in the 3 yrs I've tried growing from seed but at least now I can see why thanks to your far more detailed advice - thanks ! Keep the onion seeds in the fridge or freezer until late winter, and start them then. Why Seeds? Thank you! Wait until they are almost the thickness of a pencil to set them out. I started my chives the same time as my onions. Thanks again for this great article!! It's been a big help. Where winters are mild such as the UK many onions will grow from fall seeding, but where the ground freezes you need special varieties of overwintering onions like 'Gatekeeper' or 'Desert Sunrise'. In the past year, both Ben Vanheems and I have written about the virtues of growing onions from seed. Can you tell me where I can get these from I live in uk. ", "Hi Barbara,
Or do i plant them outside this year? This is the first time I've started leeks from seed. 1 decade ago. They are abut 3.5 weeks old now and all have 2 leaves. I enclose newly seeded containers in a plastic bag to maintain moisture, provide them with bottom heat, and the onion seeds germinate in about 8 days. Onion (Allium cepa) stems, called tops, use the sun to perform photosynthesis to form the onion bulb. I shield them from wind by using my cold frame or a plastic-covered tunnel for my onion day care center. Unfortunately a number have succumb to onion maggots. ", "Mark, you can grow scallions with no winter protection. It will be good and composted by then. ", "I find that having the onions planted one-half inch deep, so that the base of the white shank is covered with soil, helps the plants stay upright better than shallow planting.
They're doing well, but only a few are starting to show their third leaf. Curing How long your onions will keep depends on how you treat them after harvest. Provide bottom heat. you actually want to do this to the onion so that you ge maximum bulb growth. If you're eager to harvest and you bend over the tops, the bulbing process will stop. The good thing about transplanting young onion seedlings is that you should only have to do it once. Though 13 leaves is ideal for an onion plant, don't fret if … ", (If you have difficulty using this form, please use our. I pour water in daily basis is it correct or not", "I think it is likely that the plants developed a root rot disease, which also killed the little bulbs. Here you also get the widest range of varieties: red, yellow, or white; round, flat, or long; mild and sweet or pungent and tangy. Cut them off, too. After you cut them, the plants will naturally produce more tops. Prepare raised beds by incorporating compost, raking to create a smooth seedbed, then direct seeding onions about 1” apart in rows 6” apart in August or September. Add a bit of kelp meal for additional minerals and dig this in. Use the corner of a hoe to make furrows in the soil in rows 14-inches apart and about one-inch deep. I have them under lights 18 hours, but see that you recommend 12 so will cut back. How can I store these for next year? Onion plants have shallow roots and require frequent irrigation throughout the growing season.
Leave the onion sitting up in shallow water to encourage root growth for a week or so first (I used a wide glass so the sides of the glass prevented it from falling over). When I come to transplant after the third leaf, and ultimately into the ground, does this philosophy still apply? Then how deep do I need to transplant the seedlings? Onion seeds can be kept for two years in a cool, dry place such as a properly monitored seed storage box, but fresh first-year onion seeds germinate best. Thankyou, ", "Joyce, the garlic should be deep, with the tops of the bulbs covered with 3 inches or more of soil. Might be a good idea to gradually cut back when you get ready to start exposing them to natural sun. ", "Hello Barara, I grew onions from seed for the first time last year....WHAT A BUZZ!! How much protection do scallions need here? 3) I'm in the process of building a cold frame to free up seedling table space and also harden off the onion seedlings. Badly pruned before, some half-cut branches no longer grow any shoots. Why Are Your Onions Falling Over? Today, I prepared the bed for next spring. How Do Spruces Survive Aleialei Atoll's Heat? Good luck! Ours get a lot of time in freezing temps (both in the cold frames and after they are transplanted) and do just fine with very little bolting (we do around 15K and maybe 10 will try to bolt)", "A good estimate, assuming reasonable soil quality, would be a handful of good compost beneath each onion plant. In the US Grano or Granex hybrids are widely planted, but where cold winter weather requires more bolt resistance, "Japanese" onions like Bridger and Desert Sunrise are preferred. i moved my onion seedlings out into the cold frame yesterday. Also, I can't imagine what your lights look like....do I need to buy these or can I rig something up myself. ", "Hi you are saying about using lights to give heat as well as light. Onion Seedlings Falling Over. My onion plants don't seem to be doing much of anything. How do I collect seed for the following year? My worst problems have been with perennial onions. And how high do they have to be is there a box they go into. In the US, neem is allowed to control other leaf miner species on organically grown onions, but I can find no information suggesting it would work on this pest. Next, fill the trench two-thirds full of compost.
", " I had no idea, but intend to cultvate onion during this season in fields. Onion plants are field-grown, spring dug plants. Will I just end up with small onions because I'm starting so late? They were started indoors and are now in a polytunnel. You might also choose an organic onion that has begun to sprout in your pantry. Onion seedlings love sun, so start moving them outside to a sunny spot protected from wind as opportunities emerge -- just don't subject them to temps below 45F for long, to sidestep that bolting trigger. Here lies Barbara, she knows her onions. "Just enough" water is better than "too much." Oh well, i hear they store well. ", "Barbara, great information. Dry the onions in the sun for two days. Please bear in mind that I am an onion maniac, and I have no explanation for my obsession with growing onions and shallots from seed to table year after year. ", "Thank you for all of the useful information. ", "Thank you for providing such useful tips...", "I'd like to plant garlic for next year. Plz guide me how to grow seedlings in open beds ? Thanks again for the great information. So yes, when each of your onions is finished the top will fall over. I use about 3-4 onions a week. Can you rig up a protected space outdoors for them? 4) Finally my understanding is I should transplant into the garden 4 week before the last frost. A dilute water-soluble fertilizer is in order when the plants have 3 leaves. Have you encountered this problem? These little onions, or sets, are cured, stored and replanted in spring. ", "Greetings from Tasmania, Australia, Am growing both brown onions (Creamgold) and red (Early Californian Red) and am following your instructions as closely as possible, My previous experience with growing onions is not to transplant too deeply, basically, just covering the roots. I'll try to be patient! i have a 80cm trough planter, how far apart do my onions need to be? In the article you mention growing arugula between the onions. 9 March 2012, written by Barbara Pleasant. Donna", "Donna, the best onions for your climate are short-day varieties that are planted in the fall, so that they grow during the slightly shorter, milder days of winter. My onion seedlings stay in pots for up to 10 weeks, so I like to use a soil medium that's unlikely to host diseases. ", "Thanks for bringing the allium leaf miner to my attention, Joyce. Eating. Your personal best. The second frequently-recommended control is to delay planting until May, after the spring leaf miner season has ended. How to Transplant Onion Seedlings? How do you think about the answers? Your seedlings will not become sets, but will proceed straight to bulbing in midsummer. Skinny onions are notoriously poor competitors with weeds, so they require a certain level of tending. Some of the smaller ones are still stuck in the "hoop phase" and I will snip them loose with scissors in next few days. When the tops begin to fall over naturally, it's time to pull the onions up. Good luck! As you will see when you transplant them, the seedlings have 2-3 main roots with minimal branching. When you plant your onion seedlings at this depth, about two-thirds of the bulb will grow above the ground. I want to grow a lot of onions and so I do not have enough space at home. I like to water them well every other day, and let them dry out a bit in between. Last year I did a little experiment I started seeds by following your article. Please Help...", "Alecia, chives are enthusiastic growers once they are established, but that often takes a year. I also purchase a fresh bag of seed-starting mix each spring as a safety precaution against soil-borne diseases. Do I still have to plant my seeds in a covered nursery or plant directly in the soil? When would you recommend setting the transplants into the coldframe? ", "Planting different varieties can help, but not staggering planting dates, because onions bulb in response to day length. I have given them plant food, etc. Using containers too large invites problems with root rot and damping off. I noticed many very small onions. Before I started using the top of my plant light, I found that the top of the refrigerator was a sufficiently warm place to germinate onions. _____ I have trimmed them back to 3 inches because they started to tip. Thanks", "Hello, 1 thing i'm confused about is this...i live in England and sowed a packet of Bedfordshire Champion seeds a couple of weeks ago. ", "Love this. ", "Hi - I was enticed by Burpee to order onion seeds and potato tubers, and it is June in zone 7, Should I wait until next year or start now for fall harvest? Over seed, simply because they germinate and about one-inch deep now all have 2 leaves average. 46°F ( 8° C ) at night nurseries that sell herbs ( thanks your! 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