QUESTION: Why is my lettuce growing so tall? And the benefits of doing so are well worth it: being able to harvest salads full of homegrown, tasty, organic lettuce mere minutes before mealtime is a luxury that you'll appreciate throughout the growing season. Cover seed with no more than 1/2 inch of soil, and allow 18 inches between the rows. Lettuce subjected to high temperatures, particularly at night, may bolt, or go to seed, and leaf lettuce is more prone to bolting, or going to seed, than other types. In the background, the tall lettuce at the far end of the cloche (protected because bad weather is expected,) is summer sown lettuce and in the foreground is the newer winter lettuce. Lettuce is one of the most popular crops for home gardeners. In the bolting stage, a plant stops focusing so much on producing foliage and starts to turn its attention toward reproduction, sending out a … Plan to harvest your lettuce leaves in the morning, when they'll be at their crispest. After that, you will want to harvest your lettuce 2 to 3 times a week to get the most out of it. But I come from a cooler climate originally. Grow Lettuce in Winter. capitata) straight from the garden. Some lettuce grown indoors can not have the properties of those grown outdoors, find out later how you can improve your crop…. It should take about three weeks until your first harvest. Hairy lettuce If you're seeing that your lettuce is suddenly getting tall and starting to flower, you're probably well into the warm days of summer. How to grow lettuce in a pot. 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. Lettuce is easy to grow, as long as you meet its basic requirements. As a cut-and-come-again vegetable, cutting the first leaves from the plants encourages new growth, until they reach their maximum size of about 8 inches and weigh about 6 to 12 ounces. Does best when planted in early spring or late summer. As the lettuce continues to … From the time bolting begins, it takes six to eight weeks for seeds to mature. An option for growing lettuce in the summer could mean strategically arranging your garden to accommodate it. Lettuce Growing Success Tips: Planting. I’m growing lettuce for fresh greens even in the cold white winter. In the tropics you can only grow lettuce during the cooler months. Lettuce likes cooler temperatures, so it is better to grow it in the early spring or fall. We may earn an affiliate commission if you buy from one of our product links, at no extra cost to you. After germination, the first leaves are small and bright green, with the red-leaf varieties developing their characteristic maroon color as the leaves mature. This can only be done by giving the plants everything they need. For maximum lettuce production, it's wise to select a site where the soil drains well, yet retains some moisture.The soil should also be rich in nitrogen and potassium. Leaf lettuce can be sown in narrow rows or broadcast across wide rows about 12 to 15 inches across. When the hot weather comes, they send up tall stalks that will flower and set seed. Lettuce goes from seed to baby greens in 5-6 weeks, and seed to … Picking the Right Medium. Notify me of follow-up comments by email. See more on growing your own salad from leftovers in our video, below. The mature plant can reach up to 20 inches tall. Lettuce requires a minimum of 4 hours of sun each day. The leaf has to have a total length of a minimum of 3 inches, and optimally 6 inches. You can pinch off the outer leaves and eat them as the lettuce grows, or wait for them to reach 15cm to 20cm tall. 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In pots and window boxes as well as the more serious cold kicks in, lettuce does well full.