They'll take a light freeze if they're hardened off properly. Sow seeds densely and thin out the seedlings as they grow picking young, tender leaves regularly. Iceberg and romaine are two common types of head lettuce. When planting this cole crop in rows, thin your seedlings or set out your transplants so that they are 12-18 inches apart, with 2-3 feet between rows. Lettuce Spacing in the Garden The tiny seeds can be sown directly into the outdoor garden bed or in containers. There are two main types of lettuce – hearting lettuces have a dense centre, while loose-leaf lettuces have open leaves and no heart. They act as “barrier plants” for the lettuce. A usually grey, fuzzy fungal growth which can begin as pale or discoloured patches. Many gardeners don’t know how far apart they plant iceberg lettuce. Cos and loose-headed types: Plant 8 inches apart. Here is a quick reference guide to spacing lettuce: Some lettuces grown in hydroponic systems are placed much closer together. Here are two cultivation tips to keep in mind: Succession Planting. Early in the year sparrows can be a problem as they find young lettuce plants irresistible. When direct sowing into the garden, try using seed tape to achieve better spacing. Lettuce grows best in full sun, though excessive heat can cause plants to bolt to seed, or leaves to wilt. Thin carefully and transplant extra seedlings or use as greens in salad. If you suspect root aphid and only have a few lettuces, you can pull them up, wash off the aphids and replant in fresh compost. Whatever the problem, proper lettuce care and quick treatment can make all the difference. The seedlings removed may be transplanted or eaten. How to Thin Leaf Lettuce. Lettuce is a popular vegetable to grow in the home garden and how to grow lettuce successfully is important to know. You may not see the aphids, as they attack the roots, not leaves, but you may see lots of ants around the plants, as they feed on the honeydew that the aphids produce. Planting advice: Plant approx 15cm apart in full sun or partial shade. Do this by lightly working compost and a little bit of pelletised manure based fertiliser through the soil, followed by mulch, to a depth of about 5-7cm. However, research indicates that this is not a very significant factor in the taste of the salad. ‘Tom Thumb’:A small butterhead lettuce perfect for growing in small spaces. This is especially true if you’re growing lettuce in containers. Prevention is the best cure, so cover lettuces with insect-proof mesh (like Enviromesh) from June until August as this will prevent aphids getting to the roots. Plant seeds 1/4 to 1/2 inch deep (10 seeds per foot) in single, double or triple rows 12 to 18 inches apart. Lactuca sativa. Because you’ll be spacing crisp heads so far apart, there is bound to be bare soil between each head. If you start the seeds inside, the plants can benefit from an earlier planting date, and therefore a longer growing season. Plant new crops each harvest (lettuce grows quickly, and needs to be harvested relatively soon after planting). Here is how we do it, in 5 simple steps. Space heads of lettuce, fennel, and Swiss chard 8 to 10 inches apart in the garden and slightly closer in containers. When sowing seeds directly into the soil, you should plant approximately 10 seeds per foot. Once seedlings are a couple of inches tall, thin them to about 4 to 8 inches apart, depending on the variety. Thin leaf lettuce seedlings to 4 inches apart. How to grow lettuce in a pot. Time of sowing depends on when the crop is wanted: For a summer/autumn crop: sow outdoors from late March to late July. Sow seed thinly 13mm (½in) deep in rows 30cm (12in) apart. One rule of thumb for row planting leaf lettuce is 10 plants per foot. You can grow your own young plants from seed or buy them from nurseries and garden centres. Some lettuces are resistant to root aphid. Space plants 3 inches apart in rows 8 inches apart. By planting out lettuce throughout summer, you can ensure a continuous supply of fresh salad leaves. Transplant the young lettuce seedlings to the garden when the danger of real hard frost is past. 36″ – 48″ (90-120 cm.) Each variety may be a little different so check the seed packets. 222879/SC038262. You could also grow lettuces in growbags or containers – follow the sowing timings and spacings as below. Thin lettuce seedlings when they are approximately 2 inches tall. It depends on how susceptible they are to various fungi and disease. They'll take a light freeze if they're hardened off properly. Lettuce needs a well-drained soil with loads of organic matter (like crumbly compost), a bit of a seaweed feed and some lovely mulch. Protect from slugs! Don't plant the lettuce during the early winter or summer, or ... 2. Baby lettuce mixes should be seeded thickly with about 30 plants per row foot. These feed on the young seedlings and you'll see the tell tale slime trail on the soil around your crop, as well as on the leaves. Organize the holes in staggered rows, making the holes 10 inches (25.4 cm) apart. Yields 5 to 6 pounds. I like to plant a new crop of romaine lettuce every few weeks so there's always some ready to harvest. For a spring crop: sow a cultivar such as 'Winter Density' in September/October either in a cold greenhouse or outside under cloches in mild areas. Lettuce is a cool weather crop that can be direct seeded in the garden as soon as the soil can be worked. Keep the soil moist and watch for garden pests. Since lettuce seeds are so small, it will be a challenge not to sow too many. Time your spring crop to mature prior … Lettuce Spacing in the Garden The tiny seeds can be sown directly into the outdoor garden bed or in containers. Lettuce germinates quickly from seed or you can buy transplants. Wide row planting: This method allows you to plant more seeds in less space by concentrating watering, weeding, and fertilizing in a smaller area. Look over your lettuce seedlings. « Reply #7 on: November 12, 2007, 09:46 » Juan isa mostly right but some things (like potato blight) he knows nothing about- would he listen to me alst spring when his spuds were going blacker by the day? A couple of weeks later, direct sow another batch. Crisp head varieties are grown as close as 4 inches apart in hydroponic tables. Spores enter plants via damaged tissue, wounds or open flowers. It is tasty, with a distinctive flavor that's popular with home gardeners. Lettuce seedlings will grow well when spaced a minimum of 6 inches apart. They are often harvested young, and multiple times in a season reducing their chances of getting fungus or mold. Early and late sowings may need protection against cold, using cloches, plastic tunnels or horticultural fleece. If you're planting loose leaf lettuces, skip down to these instructions. Lettuce. Choose the right varieties and you can have lettuce almost all year round. Lettuce is popular to grow in containers because it can be packed closely together. Lettuce is a vegetable that prefers growing in soil with temperatures between 40 and 60 degrees. New seedlings will benefit when soil is prepared soil about two weeks before planting. Dig holes in the planting bed about 6 inches apart and about as deep as the containers holding the lettuce seedlings. Growing Guide GROWING NOTES. Here is a quick reference guide to spacing lettuce: Looseleaf Lettuce – 2-4 inches apart Butter Lettuce – 6-8 inches apart Crisp Head Lettuce – 12-18 inches apart Water every two or three days so the seeds, and later the seedlings, do not dry out. Place the plants 10 inches apart from each other in 20-inch-wide rows. This will allow for a second batch of lettuce to come from the plant. For a summer/autumn crop: sow outdoors from late March to late July. Giving romaine lettuce plenty of room to grow results in larger heads. You can even include it among your dormant perennials. Seeds need light to germinate; sow at a very shallow depth by covering with a thin layer of growing medium. Thin seedlings as soon as the first true leaves appear and continue until the plants are 30cm (12in) apart. Salad Bowl Lettuce is a loose-leaf or ‘cut and come again’ variety of lettuce, this means you can pick individual leaves and the lettuce plant will continue to grow. Select your container. Remedy: The damage is worse in dry conditions, so keep lettuce well-watered. Start harvesting heads when they're about the size of … Looseleaf varieties can be packed tightly together, but heading lettuces need some room. Rows are generally 10 to 16 inches (25 to 41 cm) wide. Choose a head lettuce variety for indoor planting. Fill with quality potting mix, such as Yates Potting Mix with Dynamic Lifter. Individual cells keep the onion seedlings separate and lets you skip the sometimes tricky process of pulling apart seedlings that may have intertwined roots. As you harvest the outer leaves of looseleaf and butter lettuces, the plant continues to produce from a central crown. For either seeded or transplanted lettuce, have 12 to 15 inches between each row. Lettuce root aphid: Older plants suddenly wilt and die back, usually in mid- to late sunmmer. When plants have two or three true leaves, thin to 12-inch spacings for crisphead varieties, 6 … Space romaine plants at least 12 inches (30 cm.) Giving each plant the room it needs to be as healthy and robust as possible is essential. Thanks to Master Gardener Sheryl Williams for this great picture from her garden! Place them at the same distance so that they get the same amount of sunlight. How To Cultivate Lettuce Plants. You could also grow lettuces in growbags or containers – follow the sowing timings and spacings as below. Bolting is when a lettuce plant sends up a tall flower before going to seed, creating bitter leaves. The seedlings you thin out can be washed and eaten too. *Transplants suitable for organic growing. Remove damaged plant parts before they can become infected. If you are transplanting looseleaf lettuce starts, plant them 2-4 inches apart. For compact loose leaf variety, sow lettuce seeds 4 inches apart, for firm head lettuce sow seeds 16 inches apart, for larger varieties like romaine sow seeds 8 inches apart. ; Sow a few seeds directly into each planting hole and lightly cover with soil. Plant the lettuce in a part of your garden with … The Royal Horticultural Society is the UK’s leading gardening charity. If a head is your intent, space them 6-8 inches apart. Rows should be spaced 12 to 18” apart, but how far apart you plant individual lettuces will depend on the type. Planting seeds at the right depth improves their chances of developing into hardy seedlings and increases germination rates. The most common mistakes with LEDs are not having enough light and not placing the light at the proper distance. Grey mould ( botrytis) is a common disease especially in damp or humid conditions. The compact size and loose growth of leaf lettuce means you can plant them closer together than head lettuce, but thinning is still necessary for healthy growth. It forms a loose head. To get an even earlier start to the lettuce crop, the seeds can be sown in flats 3-4 weeks before they are transplanted to the garden. When sowing seeds directly into the soil, you should plant approximately 10 seeds per foot. Growing lettuce is so easy, and tasty. Lettuce spacing is not an exact science, but most varieties tend to do best with spacing between 6 and 18 inches (depending on the type, so check the seed envelope or tag). Space 15cm (6in) apart and in rows 30cm (12in) apart. Otherwise, there is not much you can do, except pull up any affected plants and destroy them. Sow or plant at the correct time and keep the soil or compost moist. Start harvesting heads when they're about the size of a softball. ... one tomato plant, but your tomatoes will benefit from having their own space. Although, if you live in USDA Zones 10-11 or in any other subtropical or tropical part of the world, you should try to grow lettuce in winter.. You can easily cultivate the lettuce from seeds or from seedlings. Time of sowing depends on when the crop is wanted: High soil temperatures in summer can prevent some cultivars from germinating. The three lettuce varieties suggested in the previous paragraph are compact plants so thin the seedlings to 8cm, larger varieties should be thinned to 12cm. When the seedlings are big enough to handle, thin them out to 10-20cm apart. Transplants should be planted near the last frost-free date for the growing area. Grow lettuces in full sun on moisture-retentive soil. Direct-seeding. Protect your lettuce seedlings from slugs and birds (see pest control below). Learn how to plant and grow lettuce from Burpee's expert horticulturist. Heads of lettuce can take up as much as 12″ of space, so you’ll need to plan accordingly. Pre-soak seeds to increase germination rates, and plant each seed 1 inch deep and 2-4 inches apart. Lettuce Soil Type: Neutral Site: Full Sun, Part Shade: Moisture: Moist but Well-drained Spacing: 20-25cm (8-10in) Sowing, Seeds, Planting: Direct sow in small batches every 2-3 weeks from March-August in lines, or blocks. Lettuce. Some varieties of lettuce such as ‘Winter Marvel’ and ‘New Red Fire’ are more cold-tolerant than others. Lactuca sativa. For every square metre/yard add 25g (1oz) of general-purpose fertiliser. Leaf lettuce (think a package of mixed greens) is picked when leaves are 3-4 inches long. In a partitioned container, you should still plant at least a couple seeds in each cell in case one of the seeds doesn’t germinate. Again, head lettuce should be started indoors. Place the plants 10 inches apart from each other in 20-inch-wide rows. Plant the iceberg lettuce six to eight weeks before the last expected spring frost. Keep the plants 4-6 inches apart (depending on the size of the leaves you want and cultivar). Tip the seedlings gently out of their little pots and set each plant in its hole. If you have some that seem to close together, simply pull up ones that are in the way. Place one on each side of your food items. Water along the row to resettle the soil around the roots of remaining plants. Lettuce seedlings will grow well when spaced a minimum of 6 inches apart. You can even include it among your dormant perennials. These varieties need extra care in order to produce the firm yet mild tasting heads that are often on grocery store shelves. Leaf lettuce: Plant 4 inches apart. It can be any non-toxic and … Thinning lettuce plants is simple. Plant individual cloves so the tips are 2.5cm (1in) below the soil surface. Set plants deep enough in the holes to cover the stems up to the first set of … Lettuces are a heavier feeder as they grow … There are many ways to control slugs and snails, including beer traps, sawdust or eggshell barriers, copper tape and biocontrols. Mon – Fri | 9am – 5pm, Join the RHS today and support our charity. Some varieties will call for 18 inches and others only 8 inches. The soil should be rich, fertile, and well draining. During the summer do not sow in the heat of the day. Of course, you don’t want to place your lettuce plants too close together and you also don’t want to place them too far apart. apart. As starts grow the weaker ones will die out naturally providing space for stronger plants. Lettuce: 10-15 plants per person. Join the RHS today and support our charitable work, Keep track of your plants with reminders & care tips – all to help you grow successfully, For the latest on RHS Shows in 2020 and 2021, read more, RHS members get free access to RHS Gardens, Free entry to RHS members at selected times », Reduced prices on RHS Garden courses and workshops, General enquiries Plant lettuce seedlings 6 inches to one foot apart … Rows should be spaced 12 to 18” apart, but how far apart you plant individual lettuces will depend on the type. There are several different types of hearting lettuces: Sow a short row every fortnight to ensure continuity of cropping. Thanks to Master Gardener Sheryl Williams for this great picture from her garden! Dig 5 inch (12.7 cm) holes in a patch of your garden for each seedling. 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