The largest types of lettuce typically need above twice or thrice that (up to 18 inches). This will allow immature leaves to grow as big as possible. 2 things I have to watch are they run out of neutrients fast and I have to make little covers for water inlet and outlet so I don’t breed mosquitoes and cane toads. As their shallow roots don’t need deep soil, they do best in wide and shallow containers. Romaine lettuce also tends to do pretty well indoors. Instead of throwing them away, use them in the garden. Then, plant 4 seeds 1 inch apart, sprinkle them with potting soil, and gently mist them with water from a spray bottle. Lettuce is one of the vegetables that is very easy to grow in pots and you can even grow it in a small container. They also like to be kept moist, so water them well, especially on warm days. Rich in water, fiber, vitamins and minerals such as calcium, magnesium, potassium and sodium, the lettuce is perfect for those who have intestinal transit problems, and also contributes to the smooth functioning of the nervous system. The soil should be loose and well worked. Lettuce seeds can be sown straight into the garden (or pots) or you can start them off in trays or punnets first. LETTUCE! Remember that lettuce is mostly water so be certain that your soil is consistently moist, but not wet. In pests and insects– caterpillars, cutworms, aphids, maggots and beetles can cause damage to the plant. 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. Before you fertilize, wait for a few weeks to allow the seedlings to establish. And I have here three ways to growing lettuce in the confines of your home. During the hottest hours of the day (in the afternoon) it is recommended to create a shade for the plant to prevent the drying of the soil as lettuce prefers slightly moist soil constantly. Ideally, the best site will be on the east side of your garden. "It gave me clear instructions to grow my own lettuce. wikiHow's. Choose a good pet or compost mix soil. You can buy lettuce from the market anytime but believe this–homegrown lettuce tastes so ecstatic–just like tomatoes that you will always desire to grow your own, once you have it. Thanks to all authors for creating a page that has been read 17,407 times. This article has been viewed 17,407 times. Normal flower pots can be used to grow lettuce. This may cause root rot. In summer, when the weather starts to heat up the lettuce tends to bolt, to reduce this tendency keep your potted lettuce plant in a cool spot and provide proper shade. Butterhead is also much higher in nutrition than other lettuce varieties. This way the plant will grow back and you’ll be able to harvest it again. When growing lettuce there is a great choice all the favourites, loose leaves, cut and come again, Lollorosso, Iceberg and rocket along with various more exotic mixes available and all grown in the same way. The pot must have adequate drainage holes in the bottom and should be at least 6 inches deep. How to Grow Lettuce From Seed in Containers. If you do have a greenhouse, then good for you. If the tips of your lettuce leaves start to turn brown, try giving them more water. Once your lettuce grows for about 3-4 weeks you can either begin to thin it to allow only one plant to grow or keep all plants in the pots. References. It’s also easy to make your own potting soil at home! I have tried growing veggies such as lettuce in pots but have not had much success. Fill with quality potting mix, such as Yates Potting Mix with Dynamic Lifter. When deciding on a pot size, think about what type and how much lettuce you want to grow. Introduction for growing Lettuce in pots from seed.  X Research source Regular garden soil will often pack together tightly and deprive the roots of the oxygen that they need. Lettuce. Include your email address to get a message when this question is answered. I’m growing lettuce for fresh greens even in the cold white winter. Sow seeds now and you can be harvesting fresh, baby salad leaves in just weeks – ideal if you’re impatient or gardening with kids. Sow a few seeds directly into each planting hole and lightly cover with soil. How to grow lettuce in a pot. I personally love burgundy lettuce, both … They … ‘Tom Thumb’:A small butterhead lettuce perfect for growing in small spaces. Loose-leaf lettuce has the most variation in color and taste, so do some research on which types of loose-leaf you want to try. Mix 1 part perlite (white volcanic glass that is used to lighten soils), 1 part vermiculite (mineral that is used in potting soils to increase water retention), and 1 part compost to create a very loose mixture that is pretty close to what you can buy in the store. This can kill the plant. You can also raise in trays of Yates Seed Raising Mix and transplant when 3 … You can also use liquid fertilizer for a quick boost. Also, move the container in a cool spot when the temperature rises as this favorite green is heat sensitive. You can grow a few different varieties in a 10-12 inch pot. This can result in root rot, stunted growth, and disease. Putting 2-3 seeds in each hole may seem like a lot, but keep in mind that not all of the seeds will germinate. The soil you use must be loamy and well-drained and doesn’t hold water too much. If the weather gets too warm, your lettuce might begin to bolt — meaning that it will sprout a seed stalk and its leaves will turn bitter. Check to make sure that the flower pot has holes in the bottom for drainage. This article was co-authored by our trained team of editors and researchers who validated it for accuracy and comprehensiveness. This prevents the mid-day sun from evaporating the water before it really soaks into the soil.