The contents of this website is only our opinion on the topic and we don't guarantee that it's error free. Sometimes lettuce turning purple isn’t an issue at all. Make sure that you are planting them in an area that has moderate lighting so that they will grow effectively. This can extend the time the plant produces by as much as 10 weeks, giving you more of a chance to grow it better. Lettuce plants also need a fair amount of sunlight – not so much that they will be scorched but not too little that they don’t grow. To remedy this issue, always consider relocating them to an area in your garden with more shade and make sure to keep the soil around the plants damp to combat the heat. Keep an eye out for dry soil. When your lettuce plants stop growing, this likely means that it lacks the major plant needs – nutritious soil, sunlight, and water. ‘Set’ AGM:A crisphead lettuce, this is easy to grow and produces large, solid hearts with crisp green leaves. Pin this to your favorite Pinterest board to save and to share with others. This will help you maintain more harvestable lettuce and keep it from spreading too quickly. This means that they will have long, thin stems with very few leaves because growing thick stems and leaves take up too much energy. However, lettuce plants can also become prone to yellowing if not taken care of properly. Harvest To Table You will have to isolate and prune the lettuce plants that are already infected with leaf spot. Locally made compost is a great option to add to your plants. You should also make sure that your plants have enough warmth; it is very difficult for lettuce plants to survive freezes, so ensure that your lettuce is planted after the last frost. For example, torrential rain was a huge problem during my internship this summer. Top Problems Growing Strawberry Plants and How to Fix Them, Top Problems Growing Pumpkins and How to Fix It, Top Problems Growing Beets and How to Fix It. The first way to rid yourself of this fungus is to simply pick and dispose of the affected plants. What do they feel like – are they soft and moist, or are they dry and flaky? What lettuce needs & common problems. If your lettuce plants start to turn purple, make sure that you didn’t unknowingly plant purple or multicolored lettuce. Despite your best efforts, you may occasionally encounter some of the common problems associated with growing lettuce and other greens. Typically, we can’t grow lettuce past May in our area (zone 7). If you are already dealing with full-grown plants that haven’t produced a head, consider thinning them out to give some of them a chance to thrive. Next, you’ll need to take a look at the texture of the spots on your lettuce plants. To prevent this from happening, you will need to make sure that your plants don’t get too hot. Here's a little bit more about me. They are some of the first vegetables to die off when an unseasonable frost arises. Lettuce plants need a lot of space to grow. This is probably the most traditional indoor way of growing lettuce. Temperatures are too high. When lettuce is left out to freeze, they will likely start wilting once the weather warms back up. In addition, it is the simplest and easiest cultivation we recommend to any novice gardener to begin his or her gardening career. Treating these lettuce diseases is achieved by spacing the plants apart to provide airflow and by reducing the amount … Black Seeded Simpson lettuce is one of the more popular leaf options to grow but there are lots of other leaf types that grow well for us here in Florida like: Red Sails, Oak Leaf, Ruby Red, Green Salad Bowl. When your lettuce plants aren’t forming heads, it may be because you haven’t organized your garden properly. However, lettuce can actually let off blooms with tall stems if they are not kept under the correct conditions. Food and Water. Eric. From baby leaf lettuce to big, crisp heads, growing lettuce is easy in spring and fall, when the soil is cool. The addition of organic materials, such as compost or manure, will increase drainage, provide essential nutrients and improve your lettuce growing conditions. Other times your plants will turn brown or black, which indicates they are being attacked by fungus or bacteria and need to be treated. Growing Romaine Lettuce: Requirements and Problem Prevention Culture. These are all important characteristics to take into account when researching ways to solve your lettuce troubles. Bolting is common in cool-season greens, like arugula, lettuce and spinach. Buying Cheap, Insufficient Or Incorrect Lighting. Make sure the soil remains moist but is well drained. You don’t need to fertilize with every watering – simply add a little fertilizer to the top of your pre-existing soil every couple weeks/month or according to the package instructions. You may wonder whether or not this lettuce has gone bad, but there is no need to worry – this simply means the lettuce is getting old. Usually, spots on lettuce plants appear in either a light brown or black color. Either way, the middle of summer in four-season climates is no good for growing substantial lettuce plants. How many types of lettuce are there? Diseases Affecting Lettuce Plants. The process of oxidation is what happens when vulnerable compounds in foods are exposed to oxygen, causing a chemical reaction that changes the color of the vegetable. I practically live for gardening puns these days, so when someone asks if I want to test out a hydroponic garden system called Lettuce Grow, my answer is obviously yes.It also helps that the Lettuce Grow company was co-founded by Zooey Deschanel, who can always pick up my mood via New Girl reruns and also happens to love food gardening and to be a special friend of ours here at HGTV. Bacterial leaf spot is caused by bacteria in the soil that, through watering, planting, and normal, natural garden occurrences, has penetrated the lettuce plant and is rotting it away. Once air temperature warms up and reaches above 77F (25C), lettuce can start to ‘bolt’ which means to flower and go to seed. ‘Nymans’ AGM:A Cos lettuce with deep read outer leaves and a … Soil temperature needs to be 10-22°C (50-72°F) and preferred ph of 6.0-6.5. Enjoy these helpful tips for growing lettuce and happy harvesting. I like to use my hydroponics systems indoors so … A helpful option that you can use on your vegetables is the Serenade Garden Organic Fungicide, which is safe enough to use on your edible crops. First off, you need to take a peek at the details of the spots on your plant. Lettuce is a cool season plant needing full sun to partial shade. Unfortunately, there is no way to cure bacterial leaf spot. Another reason you should pay attention to the color and texture is that bacterial leaf spot can also manifest itself as small black spots on lettuce leaves. Make sure you take care when watering and picking lettuce as not to spread the infection to other plants. But it is also a complicated machine that can run into problems and... Hi, my name is Eric. These hot temperatures cause the plant to grow a flower. Read … By doing so, you are preventing the disease from spreading from the affected plants to other ones that aren’t yet showing symptoms. Lettuce is a helpful addition to most people’s gardens because it is easy to grow and, depending on the variety, can yield a large amount of food for you and your family. If you have started your plants indoors and they have become leggy, an easy way to give them more sun is to move them to a new spot in your home. You can amend your soil with compost to add the nutrients your plants need while also helping the soil drain better. While it's fun and sometimes more cost effective to Do It Yourself. Soil quality tests are easy to use and can be obtained at many hardware or farm supply stores. Lettuce spacing is not an exact science, but Bonnie varieties tend to do best with spacing between 6 and 18 inches (depending on type, so check the tag). Lettuce seed has a... • Seedlings wilt and collapse with dark water-soaked stems as soon as they appear. Successfully growing lettuce from seed is more about timing than anything. If removing the affected plants doesn’t solve the issue of Fusarium wilt, you will need to utilize a vegetable-safe fungicide in your garden. Since lettuce is mostly water, this means that the plant requires more hydration than many other varieties of vegetables and herbs in your garden. It’s in the leaves. If you start listing off all the individual varieties of lettuce … Finally, lettuce needs to be watered frequently and shouldn’t be allowed to dry out. If you are experiencing issues with growth or flowering, know that these issues can be as easy to solve as rearranging, watering, or fertilizing your crops. The earlier you catch leaf spot, the better. Best, For seed germination, the soil temperature is best between 50-80F (10-26C). Lettuce is a cool-weather crop and should be grown in spring and fall in most areas. When lettuce plants bolt, that is a telltale sign that your plants are under too much heat stress. A simple way to combat this problem is to grow your own lettuce. Lettuce plants have a very hard time coping through frost and freeze. In this article I’m going to cover the types of lettuces you can grow. These issues can be countered using techniques such as increased watering, relocation, chemical aides, thinning, and strategized sowing. Sometimes your lettuce plants will turn unusual colors like red, pink, or purple. Green Bibb lettuce showing signs of tip burn Greenhouse growing allows more control over environmental conditions. If soil deficiencies arise, you’ll then need to supplement with a specific fertilizer or bone meal. Unfortunately, there is no way to reverse this issue. Lettuces, cabbage, and arugula are not known to do well when sown in the spring. You can plant lettuce as soon as the ground can be worked in spring. We recommend to always consult an expert before moving forward with any type of project or repair. If your seedlings were started indoors, it is likely that your plants are leggy because they haven’t had enough exposure to light. The lettuce is tender because it is grown in the “spa-like” conditions of an indoor garden, with no sun, wind or bugs to toughen it up. When plants flower, it's generally considered a good thing; however, in vegetables grown for their leaves, such as lettuce, spinach, cabbage and other cole crops, bolting causes the flavor to turn bitter and the leaves to get smaller and tougher, making them inedible. Lettuce is one of the most commonly grown vegetables in the country, with hundreds of varieties available for purchase in grocery stores, mega-marts, and farm supply shops. Lettuce Growing Problems Most varieties of lettuce require cool weather or slight shading for best growth. If you’re growing your lettuce outdoors and you are still experiencing leggy-ness even though you’re sure the plants are getting enough sunlight, then you are probably exposing them to too much heat. Leaf Lettuce – Easiest type to grow. While it's fun and sometimes more cost effective to Do It Yourself. The basic design has not... iPad Keeps Staying On/Not Going Into Sleep Mode. If you regularly eat iceberg or romaine varieties of lettuce, you have likely seen lettuce that is colored with rusty pink/red streaks or stains. This pinkening is caused by oxidation. In that case, save your lettuce-growing for the summer. Try different varieties of lettuce. Lettuce is a cool season crop that will bolt or fail to fix heads when daytime temperatures are higher than 70 F. (21 C.) Although relatively easy to grow, head lettuce problems may range from slug and snail damage to loose heads. In fact, lettuce is one of the easiest vegetables to grow from seed, and it takes very little effort to get a great crop of garden fresh lettuce. However, many people struggle to get their plants to grow or experience changes in color or texture once they are mature. These colors are relatively normal and are simply a result of aging. Fixing no head formation on your lettuce crop means providing temperatures and site conditions that encourage for… TREATMENT There are chemical sprays available to the amateur but a leafy plant such as a lettuce will have residues of the chemicals left in the leaves so this form of treatment is not recommended. The constant movement on the plants requires them to create tougher leaves to stand up to the wind. Nearly all problems you may encounter when growing lettuce are caused by hot weather. Plant fall lettuce beginning about 4 to 8 weeks before the first frost. Find helpful customer reviews and review ratings for Lettuce Grow 12-Plant Farmstand - Self-Watering, Hydroponic Growing System - BPA Free - FDA Food Grade - CA Prop 65 Compliant - Ideal for Veggies, Herbs & Lots of Leafy Greens (12 Plants) at Amazon.com. Grow lettuce in the cool part of the year, when temperatures range in the 50s and 60sF. Let’s take a look at how to grow lettuce in your garden. This website is compensated for referring traffic and business to these companies. http://www.sfgate.com/food/seasonalcook/article/Cooked-lettuce-becomes-a-hot-topic-2506986.php#ixzz2MJUZhBs0, https://www.johnnyseeds.com/featured/heat-tolerant/?sz=18&start=18, How to Store Harvest, Cure, and Store Winter Squash. Pest problems are easy to deal with, but only climactic conditions can ensure head formation. Leggy-ness is an issue that presents itself early in the growing stage of planting vegetables like lettuce. The issue with fungal infections on plants is that they often don’t just spread through other plants but also through the soil they are planted in. This happens especially if you get very hot weather after a cool spell. Moisture Stress. You should aim for a pH 6.0-7.0. It is important to note that leggy-ness has different causes depending on where the seeds were started (indoors or outdoors). Lettuce is one of the easiest vegetables to grow outside, … Many grow lights, such as the GHodec Tri-Head Plant Light, have timers that you can set, which keep the light on for four, eight, or sixteen-hour intervals. Just like when lettuce turns pink, red, or rust-colored, lettuce may also begin to take on a purple hue. Grow leafy varieties where the weather is warmer. According to agriculturalist Bonnie L. Grant from Gardening Know How, lettuce plants shouldn’t be exposed to too much warm weather when they are growing. Poor Germination. Lettuce is prone to wilting and therefore needs to be watched closely. I'm a homeowner and I'd like to do things myself. When you first plant your seeds or transplant your seedlings, make sure to thin them out, so each plant has enough room to spread out. The top problems growing lettuce are halted growth, plant death, changes in color, dark spots or stains, leggy-ness, bolting, and lack of head production. Though this problem usually occurs after harvesting, it’s possible that your lettuce plants may start to become a rusty color when they are still growing. Tip #4: Starting Lettuce Seeds in a Garden. Take this time to plan your garden for next year. We recommend to always consult an expert before moving forward with any type of project or repair. link to Crock Pot Turns On but Won't Heat Up, link to iPad Keeps Staying On/Not Going Into Sleep Mode. Insufficient soil moisture or overly wet soil can both result in poor growth and … Eventually, leaf spot can also take over the whole plant, not just as a series of mushy brown spots but entirely turning the plant dark black. Most people are familiar with green varieties of lettuce, but fewer people are accustomed to consuming purple lettuce. We plant lettuce in the garden and in a pot to enjoy it fresh in our salads. Lettuce prefers soil that is high in organic material, with plenty of compost and a steady supply of nitrogen to keep if growing fast. Fusarium wilt is an infection caused by the Fusarium fungus. Growing lettuce from seed is not only rewarding, it’s super easy too. When young plants do not have enough exposure to light, they tend to stretch and reach upward in an effort to get closer to the sun. There are a few different ways to combat Fusarium wilt. This will help mitigate some of the negative effects of heat on your plants. Don't write to the seed company right away. This basically means that you can grow lettuce in any model of the indoor garden that you have. Change your growing season. Like this article? Another reason your lettuce plants may not be producing heads is that they have been planted at the wrong time. I’ll write out what I’ve learned while researching DIY projects and share my experiences while working on different projects. If you find yourself with a crop of lettuce that’s producing flowers, you have a problem on your hands. Lettuce can be one of the easiest plants to grow at home because of the short amount of time it takes to sprout and the amount of it which can be put in the ground. An inventor and electrical engineer, Irving Naxon, applied for a patent for a food heating device in the 1930s based on inspiration from his Lithuanian grandmother. Leaf: These are defined by their loosely grown leaves and are probably considered the easiest to grow. I already mentioned above that slugs and snails love lettuce. Harvest leaves all at once or a … Add compost or organic fertilizer. Make sure you can find a place by a window that gets at least 6-8 hours of bright sun daily. ; Butter: Also called Bibb or Boston lettuce. Romaine thrives in rich, well-draining soil where it gets full sun and partial sun in the hottest climates. The only problem will be that this salad green should be harvested often and therefore results in … These heads are the main portion of the plant that give us the ingredients for our salads and sandwiches. Even worse, your plants might even start to show signs of death. Leaf color and texture vary with variety. Lettuce plants are not normally thought of as plants that flower. When your lettuce plants start to show signs of spotting, it’s time to take a close look at what might be going wrong in your garden. Diseases affecting lettuce plants are either bacterial or fungal. This website might also participates in affiliate programs with Bluehost, Clickbank, CJ, ShareASale, //Commerce and other sites. Lettuce From a Flower Pot. The flies will congregate around the growing tips and young seedlings. All of these issues can prevent you from harvesting healthful and nutritious lettuce. These issues can be countered using techniques such as increased watering, relocation, chemical aides, thinning, and strategized sowing. This way, when the temperatures go back up the next day, then your lettuce plants won’t be in such a state of shock. Pick the outer leaves off, keeping them from maturing. Bolting is caused by the long days of light and heat, so it occurs mid summer and during a hot sunny spell. Since lettuce is such a fragile plant, it’s important to keep an eye out for any signs of stunted growth or death. Most gardeners suggest anywhere from eight to twelve inches of space between them. Privacy Policy, « Artichoke Growing Problems: Troubleshooting, Beets and Chard Growing Problems: Troubleshooting ». Check in with a local farmer or nearby farm supply store to see if they have any compost for sale. Sometimes when we plant vegetables or herbs, the seeds or seedlings won’t take root, and the growth of our plants will halt. To be able to grow properly, the soil in which you’ve planted your lettuce needs to be well-balanced with necessary nutrients like nitrogen, potassium, and boron. Grow lights are helpful because they allow you to target your seedlings with an exact amount of light. This causes it to flower and go to seed prematurely, which puts an end to the lettuce as it is inedible, usually to taste bitter. Container and Pot Sizes: How Much Soil Do I Need. If your lettuce starts turning brown, you are likely dealing with a case of bacterial leaf spot. If even after using a vegetable-safe fungicide, you are still dealing with issues of Fusarium wilt, you may have to scrap your lettuce crops altogether and call it a loss for the season. Heat stress is caused by temperatures that are consistently too high, or it is caused by a sudden spike in temperature. This means that you will have to harvest the heads of lettuce immediately to avoid the issue worsening. 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