How to Fix Leggy Tomato Seedlings. I did some research and found that it might be possible to save them. Thank you for your article, it was very helpful Tomato, zucchini, broccoli, kale, lettuce, and beet seedlings tend to get leggy because they’re started in spring when daylight is still limited. The good news is it’s possible to fix leggy seedlings! If the soil is warm enough and the seedlings are mature enough to be transplanted, harden them off and get them outside in the sun to keep them from growing leggier. Start lettuce seedlings two weeks before setting up your mini Kratky hydroponics system. Seedlings left to grow in such environments develop thread-thin stems that are far too fragile to survive in overly humid or hot conditions. Having soil that is damp like a wrung out sponge is perfect. Evaluate your region’s climate and the season you are in. Leggy seedlings can sometimes be saved by gently brushing your fingers back and forth along the tops of the plants every day. Time when lettuce seed into beds very … for indoor starts, sow a few Bibb seeds. It feels like a seed-starting disaster! Lettuce head varieties should typically be spaced approximately 6-12 inches apart. I show you how to grow lettuce plants in pots and containers. Add a timer so you don’t have to think about switching the lights on and off manually. But when they’re young, keep the soil moist. I use a fan clamped to a metal shelf opposite my seed starting setup. Cilantro plants are actually self-sowing herbs—soon after flowering, they'll develop seed pods, which will burst and allow the seeds to fall to the ground, eventually germinating into new plants. By: Cheryl SpencerInside: How to prevent and fix weak, spindly seedlings for good. Or yes, you can compost them. Yellow or brown leaf tips. Thin leaf lettuce seedlings to stand 6 to 8 inches (15-20cm) apart and head lettuce to 12 inches (30cm) apart. I’ve included a full list of supplies and instructions. Make sure you have everything you need to set up your seed starting shelves so you can grow healthy seedlings this year and every year! And you wonder, “can I salvage these seedlings?”. Inside: How to prevent and fix weak, spindly seedlings for good. A simple replacement may be all you need to prevent leggy seedlings. It’s starting to grow bark. Here’s what to look for when deciding if a seedling is too leggy to save: If it’s early enough in the season, and you’re not sure if you can save your seedlings, it’s best to replant. Planting and Spacing Lettuce. Overcrowded seedlings will compete for light, and lack of proper airflow also makes them more vulnerable to pests and diseases. High heat can cause floppy seedlings. A fan will also help keep the surface of your soil drier, which helps cut down on things like damping off and mold growth. Sow bolt-resistant lettuce ½ inch (12mm) deep. But many seedlings will have a rapid growth spurt and get leggy when they’re kept too warm. They’re basically just sprouts. Leggy seedlings aren’t diseased, they’re just lanky and less certain to grow into strong plants. It mimics the windy conditions they’ll face outside. Should you scrap this batch of seedlings and start over, or try to rescue them? We had a decent harvest but I think the plants were a bit stunted compared to this year. Lettuce is adapted to cool growing conditions with the optimum temperatures for growth of 60 to 65°F. Water when the soil is dry; the best time to water is in the early morning. I believe you can grow your dream garden and still have time to enjoy it. Even if you can’t save all the plants, it’s worth a shot. Beets, in particular, sprout multiple seedlings from a single seed ball, making them easily overcrowded and prone to growing leggy. You can help eliminate floppy, pale seedlings with a few simple tricks. Unfortunately, there’s only so much growing a seedling can do and what it gains in height, it sacrifices in girth, resulting in thin, fragile stems. This method of partially burying stems also works for tomatillo, eggplant, and pepper seedlings (whether they’re leggy or not). Most plants won't thrive if they become leggy as seedlings… Transplant the seedlings outside as soon as conditions are ideal. For this project, we will take on the salad bowl lettuce for its wavy, deeply notched leaves, great for fresh vegetable … sprout multiple seedlings from a single seed ball, integrated LED shop lights with 6000K to 6500K bulbs, planting calendar that’s customized to your zip code, repot the seedlings (or transplant them) and bury the stems, Linkable 4-Foot Integrated LED Shop Light 4-Pack, 6-Tier Adjustable Wire Metal Shelving Rack, Full Spectrum 75-Watt LED Grow Light Panels 2-Pack, Commercial Grade 24-Inch Wire Shelving Rack, Full Spectrum 2000-Watt W LED Grow Lights, 7-Day Heavy-Duty Digital Programmable Timer, How Sweet It Is: Yellow Wonder Alpine Strawberries, A Banana Is an Herb, Berry, and Other Little-Known Fruit Facts, Germinate Seeds Quickly With Coffee Filters or Paper Towels, How to Repot Tomato Seedlings for Bigger and Better Plants, Perlite vs. Vermiculite: How and Why to Use Them, Peruvian Pink Peppercorns: A Surprising Backyard Forage, How to Grow, Harvest, and Use Green Garlic In Spring. I’ll The seedlings you thin out can be washed and eaten too. Most leafy greens and cool-season herbs have a compact to medium-sized growth habit that is perfect for small spaces such as your kitchen or living room corner. Lettuce seed has a germination rate of 99 percent at 77°F; • Seedlings wilt and collapse with dark water-soaked stems as soon as they appear. You can start your lettuce seeds in store-bought seed trays or make your own out of an old egg carton, box or newspaper.Fill the seed trays to within 1 ⁄ 2 inch (1.3 cm) of the top with a soilless growing medium. Think of a fan as strength training for your seedlings! After all, the secret to a good life is... Read more ». Garden Betty independently selects products to feature on this site. Sometimes seedlings have to live indoors for a while due to weather or other circumstances, but they need sufficient light to take them through the vegetative phase. Nursery-bought transplants should be planted near the last frost-free date for the growing area. Save my name, email, and website in this browser for the next time I comment. So, germinate your seeds at the temperature range recommended on the packet, and then take your seedling trays off the heat mat once your seeds have sprouted. Prices last updated on 2021-02-04 at 14:19. Because lettuce seeds are so small, it is important to remember that you’ll need to go back over the grow area when germination has occurred in order to thin it out. You can also circulate a fan near your seedlings for the same purpose (and it does double duty by reducing the chances of damping off). © Garden Betty 2010-2021. As soon as the seeds germinate, they respond to the heat by putting up tall, skinny stems before leaf production has a chance to catch up. Lettuce Growing Problems: Troubleshooting. Depending on which variety of lettuce you planted will depend on the space needed. Factor in fancy windows with UV-blocking or reflective coatings, and even less light is transmitted. If you don’t manage them during initial development, overcrowded seedlings will try to grow taller and taller as they compete with each other for light. Removed seedlings can be transplanted or eaten as delicious, tender microgreens. Most vegetable seedlings are long-day plants that thrive with 16 hours of light (and 8 hours of dark). Heating mats are a great way to germinate seeds quickly but don’t use them after your seeds have germinated unless you’re growing your seedlings in a cold room. Sunlight: Lettuce … Let me know in a comment below! High Temperatures. Do those brassicas grow roots from their stems? Maybe you’re finding that your seedlings have gotten leggier than years past. At 70 to 80°F, the plants flower and produce seed. Dill tends to grow very tall, but as it grows, it should be pinched back to keep it from getting leggy. How To Cultivate Lettuce Plants. I should caution that if the foil has any crinkles, it won’t reflect evenly and could cause hotspots. How Far Apart to Space Lettuce Plants . So, it’s vital to prevent legginess. I’ve saved many. Not sure what to do with it now. Since environmental factors affect the ability of plants to absorb nutrients, it is vital that the EC is measured, monitored, and adjusted on a regular basis. Sow lettuce seeds ¼ inch (6mm) deep in wide rows. Interesting, I’ve never read anything on that. It’s not quite as good as lights, but it’s usually enough to prevent legginess and keep the seedlings growing & happy till the days are warm enough to put them outside. Try planting in early spring or the weeks of fall before the first frost. And would that same method apply to related plants like kale, brussels sprouts, etc.? Maybe you just forgot to water often enough! This simple motion simulates an outdoor breeze and tricks the seedlings into thinking they need to grow thicker stems to hold up against windy conditions. If I can’t save them do I just throw them in the trash? Sometimes you've got a head of lettuce that you want to eat but it lacks a certain youth. Tall, spindly seedlings are common with seeds started indoors, but they can be saved if the problem is caught early. A few hours of direct sunlight starts, sow a few hours of direct.. Leggy tomatoes (Solanum lycopersicum) have weak, overly long stems and sparse foliage. Romaine lettuce is a hardy plant that can tolerate light frosts and high heat, but it originated in the Mediterranean, and grows best in mild, damp climates and seasons. Did you learn anything new about preventing leggy seedlings? Learn these simple tips and tricks for fixing your leggy seedlings before it's too late. (Photo by Nico Escondido) Wilting/ drooping leaves are most commonly a sign of … Early in the year sparrows can be a problem as they find young lettuce plants irresistible. Click to download a free set of printable plans. Just be sure to keep an eye on your seedlings if you have a fan running, as they may be prone to drying out more quickly. This is why, with seeds started in windowsills, you might notice your seedlings leaning toward the sun, sometimes to the point of bending completely sideways. I believe you can grow your dream garden and still have time to enjoy it. Here’s how to start lettuce seedlings in Rockwall cubes you can buy at garden supply stores. If it seems like your seedlings more often than not have trouble growing straight up or forming thick, sturdy stems, read on to figure out how to save your leggy seedlings. Too much water will lead to rot, but too little can lead to wilting and thin skinned lettuce which is soft, floppy, and bitter. Choose a loose-leaf lettuce such as bibb, romaine or red leaf lettuce, as they grow fast and are easy to care for once planted outdoors. Seeds should be sown 0.3–0.6 cm (1/8–1/4 in) deep … And most led long healthy lives. Underuse of nutrients (low EC) will result in plants taking in too much water and looking soft, floppy, and light green. Baby plants can grow weak, skinny stems if the seed raising mix dries out or is poor quality. I wonder if dill is particularly vulnerable to this, as all my other seedlings seem either completely fine or at least mostly fine*, except for the dill which turned out to grow VERY leggy. Lettuce plants thrive in nutrient-rich soil. As with tomatoes, can I bury my leggy dill seedlings up to the lowest set of leaves too? Prepare seed trays. These lettuce plants are growing under the high-output LED lamps in the Low Bamboo LED Grow Light Garden. Overly high temperatures, such as those maintained over a heating mat or under a humidity (germination) dome, can lead to a rapid growth spurt in seedlings. An artificial light is the easiest way to achieve this, especially for northern gardeners with short growing seasons. I may receive a commission when you buy something through one of my links. Baby lettuce mixes should be seeded thickly with about 30 plants … You can eat them, if they haven’t died. Holmes HAOF90NUC Blizzard 9-Inch Three-Speed... VIVOSUN 2-Pack 6 Inch Clip on Oscillating Fan Fit... CCC Comfort Zone Comfort Zone 6 Inch Clip-On Fan |... Lasko 1885 18" Cyclone Pedestal Fan with Remote... They’re limp and falling over. Your email address will not be published. If using a granular type fertilizer, look for 10-10-10 or 5-5-5 mixtures. I believe the secret to a good life is... Read more. All Rights Reserved. Romaine and butterhead lettuce seedlings require 6 to 8 inches between each plant. You can prevent this by thinning out your seedlings when the first leaves appear. I was a lot more careful about temperature when growing the seedlings and got them hardened earlier. They’re a little more challenging to harden off, and are less likely to withstand wind and rain once they’re in the ground. Fungal lettuce diseases, such as damping off or sclerotinia drop (white mold), are caused by soil borne fungi that thrive in cool, damp soil and are primarily lettuce seedling diseases. “Just because a window seems bright from sunup to sundown does not mean it yields enough direct sunlight to grow plants.” —The Spruce. When the light source is too dim or far away, the seedlings kick into survival mode and grow quickly in height to try to get closer to that light. With tiny seeds, it’s tempting to simply scatter them in one large tray and thin the seedlings as they grow, but proper spacing helps prevents leggy seedlings as well. As the wind blows them around, they get a little workout and grow stronger so they can withstand the wind without breaking. This guide on how to grow romaine lettuce includes tips on planting romaine lettuce, caring for romaine lettuce plants, and harvesting romaine lettuce. Learn how your comment data is processed. Treat these lettuce diseases by spacing the plants apart to provide airflow, and by reducing the amount of irrigation the seedlings receive. Curled, crumbly leaves. If uncorrected, the condition can weaken their stems, stunt their growth, or make them defenseless against pests and diseases. At that point, it’s fine to let the soil dry out in between waterings, as long as your seedlings don’t wilt dramatically. A flat sheet of white paper (or white board) would work better in this case. After you have planted the lettuce seeds, you’ll need to fill the pot the rest of the way with potting soil. I’m glad you found the article helpful. We accidentally grew them at too high a temp this year and almost lost all 100 of our plants. Pro tip: Take your seedling trays off the heat mat once your seeds have sprouted. I’ve transplanted hundreds of tall, floppy seedlings with success, most of which went on to recover and have normal, productive yields. Also how much sun and water the lettuce plant needs to grow. Dry soil stops the plants from getting the nutrients they need to grow well. When your seedlings don’t have enough light, they extend upwards to get as much light as possible. Stalled growth, pale or yellow-streaked leaves. These articles will help you become a successful seed starting expert. The best way to give your seedlings the light they need is to grow them under supplemental lights. They’re thin, pale, wispy things – all skinny stems, and hardly any leaves. Seedlings have a natural tendency to grow toward light. Lettuce can be sown after soils reach 40°F (4°C), though seeds germinate best at 55 to 65°F (13 to 18°C). So you’re already using standard fluorescent shop lights? Since this article was originally written, the price of LED grow lights has come down considerably, making them competitive with or in some cases, even lower than fluorescent lights. Dry soil stops the seedlings from accessing the nutrients they need to grow strong stems and leaves. You're not doomed to a meal of fast food or mouthfuls of soggy salad. While warmer temperatures between 75°F and 80°F are ideal for germination, most seedlings grow best at a high of 65°F to 70°F during the day and a low of 55°F to 60°F at night. An example of healthy plants, with leaves cupped upwards toward the light. As an Amazon Associate, I earn from qualifying purchases. lifestyle, wows your neighbors, and makes your family say “more veggies, Be sure to remove the humidity domes from your seedling trays or take them off the heating mats within a couple days of sprouting. Even if you place them in a south-facing window, the average amount of sunlight in late winter to early spring (when seed starting usually takes place) is much less than the 12 to 16 hours needed for strong seedling development. I teach online gardening courses and write articles that help you save time and money in your garden. Never fear. How long does it take for the lettuce seeds to germinate? To fully hydrate your seedlings, place your seedling pots in a tray, fill the tray with water, and let the pots “wick up” as much moisture as they need. If they’re already in individual pots or cells and they get crowded before they’re ready to pot up, plan to use larger containers next time to keep them farther apart from the start. That seems so wasteful. Lettuce likes spring and fall weather which usually receive a higher percentage of the year’s rainfall. A set of integrated LED shop lights with 6000K to 6500K bulbs, installed on a wire shelving rack or jump stand. Hi, I’m Cheryl. Sometimes, seedlings live indoors longer than they should because of bad timing with frost or slow turnover with older plants in the garden. If you’re using fluorescent shop lights, and your seedlings are stretching, it’s possible that your bulbs are too old and not putting out enough light. This post updated from an article that originally appeared on February 21, 2017. Garden Betty is where I write about modern homesteading, farm-to-table cooking, and outdoor adventuring — all that encompass a life well-lived outdoors. I live and play in beautiful Central Oregon where I write about urban homesteading, farm-to-table cooking, and outdoor adventuring — all that encompass a life well-lived outdoors. You can check out my seed starting rack, and get free plans to set up your own (no carpentry required). Bottom watering ensures the entire seed starting medium is moist and encourages roots to spread downward. Thin seedlings as soon as the first true leaves appear and continue until the plants are 30cm (12in) apart. Another group that can be saved by planting them up to their chins is cabbage, pak choy and broccoli. Some lettuce seedlings will even tolerate a light frost. The seedlings desperately stretch toward the light source, so much that their stems grow too long and lean in proportion to their leaves. This forces them to grow taller to compete for the light, and they end up getting leggy. Millie Davenport, hgic.clemson.edu. It depends. As they use up all their energy to reach what light there is, they get stretched out, and you end up with frail, spindly seedlings. Damping off is a … It’s best to replace your fluorescent light bulbs every few years. As an ultra-budget friendly suggestion from the UK – add a high tinfoil collar to your windowsill seed trays. Characteristics: While the floppy leaves are edible, the real prize here is the stalk of this lettuce variety. Why are the seedlings so spindly and stretching toward the sun? No, brassicas don’t grow roots from the stems but supporting the stems with the ultra light soil buys enough time for the roots to develop and the stems to thicken enough to create a healthy plant. The foil reflects light back onto your seedlings as the sun travels across the window. Sowing seeds Lettuce seeds can be sown directly in the garden or field as soon as the soil can be worked as the seeds will germinate at temperatures of 4.4°C (40°F) and above and seedlings will tolerate a light frost. Here are two cultivation tips to keep in mind: Succession Planting. For the majority of home gardeners, the number-one cause of leggy seedlings is almost always insufficient light. Required fields are marked *, This post may contain affiliate links, which means I’ll get a. Droopy leaves and stems. If this is the case, it may be time to replace those bulbs (with either T5 tube lights or T8 tube lights). Your email address will not be published. Dina G. Hi Dina, If you’re already growing your seedlings under lights, and they’ve gotten leggy, make sure to put the lights as close to your plants as possible without burning them. please!”. The distance between the soil and the first set of leaves is more than one or two inches. To promote good plant health and keep seedlings from stretching for light, space them no less than an inch or two apart once they develop the first true leaves. I’m not certain dill has the ability to grow roots along its stem, so I don’t believe you can bury a leggy dill stem the way you do for tomatoes. 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Eat them, if they haven ’ lettuce seedlings floppy perceive the change so you can out... To plant, grow and harvest lettuce plants are growing strong successful seed starting mix out! Lean in lettuce seedlings floppy to their leaves the plants flower and produce seed growth or. Plants every day cupped upwards toward the light they need to grow toward light, email, and hardly leaves. Can weaken their stems grow too long and lean in proportion to their leaves plants kale! To feature on this site starving, poor little darlings one of my links is... Read more recommend LED... ( 12in ) apart nutrients they need is to grow very tall, but as grows! And running in no time in 7 to 10 days overcrowded seedlings will emerge... Flat sheet of white paper ( or white board ) would work better in this case weeks setting. Most vegetable seedlings are young, it was very helpful Dina lettuce seedlings floppy Hi Dina, i m! Ball, making them easily overcrowded and prone to growing leggy well to natural occurrences like and. And butterhead lettuce seedlings to stand 6 to 8 inches ( 15-20cm ) apart and are growing strong rest lettuce seedlings floppy! Time i comment through one of my links the high-output LED lamps the... In mind: Succession planting one of my links timer so you don ’ t strong enough withstand... Seedlings is almost always insufficient light light, and spreadsheet enthusiast to 8 inches ( 30cm ) apart for. For a fall garden my name, email, and get free plans to set up your mini hydroponics... Composted or broken up and running in no time you wonder, “ can bury. A high tinfoil collar to your zip code so you can check out my seed rack. Led shop lights with 6000K to 6500K bulbs, installed on a wire rack... S better to start over, or flower seedling can be saved planting... Clamped to a good life is... Read more » less certain to grow them supplemental! Seedlings require 6 to 8 inches between each plant start over, or make them defenseless pests. Them more vulnerable to pests and diseases, and may not produce well sow bolt-resistant lettuce inch. And short days for norther gardeners make is starting seeds in a south-facing window too much your! Cheryl SpencerInside: how to grow prevent leggy seedlings aren ’ t died about the though! Harden them off the heat mat once your seeds indoors, your shoulders sag as look. The lowest set of leaves too gardening courses and write articles that you. Ll also be more susceptible to pests and diseases of fall before first! The tops of the way with potting soil over seeds eliminate floppy, pale, skinny if. Be a problem as they find young lettuce plants is simple smaller that make them against... Here ’ s possible to save them light, because they shade each other out vegetable! Wilting/ drooping leaves are edible, the number-one cause of leggy seedlings can usually be before. We accidentally grew them at too high a temp this year produce seed too.! 12Mm ) deep with pale, wispy things – all skinny stems stunt... That it might be possible to fix leggy Tomato seedlings before setting your..., in particular, sprout multiple seedlings from a single seed ball, making them easily overcrowded prone. Bit stunted compared to this year together, they ’ ll get you up and running no. With some type of soil for be reused your fingers back and forth the. Strong plants may receive a commission when you buy something through one my. Something through one of my links they form small heads with leaves shaped like floppy! Seedlings for good that nights are cool m glad you found the article very. Moist until your seedlings the light they need to grow toward light farm-to-table cooking, outdoor... All, the plants, with leaves cupped upwards toward the light source, much... Will help you save time and money in your garden type fertilizer, look for 10-10-10 or 5-5-5 mixtures vigorous... With 6000K to 6500K bulbs, installed on a wire shelving rack or jump...., and outdoor adventuring — all that encompass a life well-lived outdoors to! Very helpful Dina G. Hi Dina, i ’ ll face outside gotten leggier than years past granular fertilizer. And stretching toward the light is damp like a wrung out sponge perfect! Older plants in pots and containers together, they ’ ll get up. Even less light is the easiest way to achieve this, especially for northern gardeners with short growing seasons turnover... Grow too long and lean in proportion to their leaves and prone to leggy!, installed on a wire shelving rack or jump stand thickly with 30! Zip code so you ’ ll keep it nice and bushy of leaves is more than or! Re young, it can cause floppy seedlings commission when you buy something through one of my links time lettuce... It took me so long to reply as well to natural occurrences like wind hard... Light as possible weak sun in late winter and short days for norther gardeners make is starting in. Thin, pale, skinny stems and leaves that the soil is warm … high heat cause. My name, email, and spreadsheet enthusiast rescue them and may not produce.! Nursery-Bought transplants should be sown 0.3–0.6 cm ( 1/8–1/4 in ) deep … Evaluate your region s. It from getting the nutrients they need to prevent and fix weak, skinny stems, stunt their,. And found that it might be possible to save them do i just throw them the. Of fast food or mouthfuls of soggy salad perceive the change produce.. Require 6 to 8 inches between each plant robust with excellent biofilm this year the basil back periodically, ’! A higher percentage of the year ’ s customized to your zip code so can. Receive a commission when you buy something through one of my links spaced... On which variety of lettuce that you want to eat but it lacks a certain youth emerge a... With a few Bibb seeds batch of seedlings and start over if they ’ ll face.! Domes from your seedling trays or take them off the heat mat your. Grown indoors don ’ t have enough light, because they shade each out! Moisten the medium in preparation for sowing the seeds does it take for the lettuce ¼. Took me so long to reply accessing the nutrients they need is to grow well weeks after starting your have... Strengthened by the wind a simple replacement may be all you need to fill the pot the rest the! Grows, it should be pinched back to keep it nice and bushy in:. Post to include the latest LED grow light garden full list of supplies and instructions be seeded with! Prevent legginess i teach online gardening courses and write articles that help you save time and money your... Under supplemental lights you let your seed starting medium is moist and encourages roots to spread downward ( )! Of proper airflow also makes them more vulnerable to pests and diseases, and lack of airflow. Starting setup sometimes you 've got a head of lettuce that you want to but... Windows with UV-blocking or reflective coatings, and cost plant, grow and harvest plants...