Hydroponic lettuce takes 30 days to harvest when the cultivation starts from seeds. It's great to enjoy your own lettuce over the summer but imagine how uplifting it would be if you could treat yourself to home-grown salad during the colder months. How long it takes for lettuce to grow depends on what you intend to use it for. To harvest baby lettuce leaves from leaf lettuce and romaine lettuce simply let it grow until the outside leaves are about 3 inches long. You can usually pick lettuce leaves about 30 to 45 days later. Transplanting Head Lettuce. If you try to analyze the lettuce grows very fast. The leaves are bigger and the stalks. How to grow Lettuce guide. The faster Romaine grows, the crisper the leaves. When you grow Lettuce at home you could not have a shade house. For example, a head of lettuce can be harvested in as little as 35 days, which is half or even less than half (depending on the variety) of the normal time it would take to grow a head of lettuce outdoors. Many varieties of sweet corn (Zea mays var. Put the cubes in a dish of water for two weeks in a dark condition. Some of the types to try include Romaine, bibb and butter crunch, all of which are ready in three to four weeks. Head lettuce, such as iceberg, will grow well, but the heads take about twice as long to be ready as the leafy types. Leave the smaller leaves in the center to keep growing until you’re ready to pick again. How Long Does It Take to Grow Romaine Lettuce? We recommend keeping the grow lights at least 4 – 6” above the plants as they grow. Crisphead lettuce comes to harvest in 80 to 90 days. Lettuce may also be transplanted into long, window box-like planters. This can take as little as 30 days. Regularly check your nutrient solutions pH as well as total salt concentration level. So, keep cool - by using mulch, starting seeds indoors and planning a fall head lettuce crop. Personally, I have had success into January. Pay close attention to seed packet information for exact days to harvest. Cover with a very thin layer of compost or vermiculite. You could grow a bunch of it in flower pots, mobile grow spaces, or in seed starting … Romaine and Butterhead lettuce can be harvested in about 60 to 70 days from planting. Picking the Right Medium. Once the leaves reach at least 2 inches (5.1 cm), you can start harvesting your butter lettuce at any time! Romaine lettuce is easy to grow. Cool Season Crops We have found that with our new LED lights, plants grow much more quickly! It is lightweight, which … So this plant is very good especially for beginners. Lettuce comes up fairly quickly—sprouts appear within a week! The mature plant can reach up to 20 inches tall. Romaine lettuce will take about 60-70 days to mature and you will know when to harvest Romaine lettuce when the center leaves grow together to form a lengthy head. You can grow lettuce in cooler temperatures than these, but it will grow more slowly. Not all lettuce is picked the same way. So make sure you are growing your lettuce in a cool area. How long it takes for lettuce to grow mold depends upon the conditions it is stored in. Pull lettuce leaves off as needed for immediate use. Iceberg (crisphead) varieties take longer and should be harvested as soon as a head develops but before outer leaves turn brown. Cos varieties are my favourites, take about ten – eleven weeks to grow up, and outer leaves can be harvested while the lettuce is still growing. Lettuce can easily be grown with hydroponics and below we have listed what you need to get started: Step 1: Choose a high quality lettuce seed. A pH of around 6 is a good target for lettuce. Crisphead or Iceberg lettuce form firm, compact heads of pale green, overlapping leaves. This lets the “lettuce angels” know that I am prepared to take good care of them while they grow. According to the University of Michigan Extension, lettuce seeds will take 2 to 15 days to germinate . Above you will see a photo of my lettuce once it sprouted. Here we explain the steps to set up your own hydroponic cultivation system and grow hydroponic lettuce. They often need to be thinned before they are big enough to eat, but the chickens love the tiny samples. If seed stalks appear, pick the lettuce immediately and store in the refrigerator to prevent bitterness. Step 2: Place a lettuce seed into a growing medium such as a Peat Pellet or a Rockwool Starter Plug. protect from slugs and snails. Romaine or Cos lettuce form leafy green upright cylindrical or oval heads. Sow seed on moist, well-prepared soil or compost in spring. Lettuce. Cos lettuce are great in cooler climes, and can easily become a winter favourite. It matures in 40-45 days, but no need to wait that long to enjoy it! 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