Sow a three-foot row of lettuce seeds every couple of weeks—just rotate the straw bale around the garden. Butterhead or romaine types can be harvested by removing the outer leaves, digging up the whole plant, or cutting the plant about an inch above the soil surface. When fully grown it forms rich green, compact heads of fan-shaped leaves. Submitted by The Editors on May 10, 2018 - 10:28am. Submitted by Saurabh Bhatia on May 25, 2020 - 1:09am. What Can You Compost – A Simple Guide to Composti... How to Grow Jalapenos: A Guide to Growing Jalapeno Plants, Winter Flowers: 17 Flowers That Bloom in the Winter, A Guide to Buying Real Christmas Trees: Top 10 Trees, 20 Winter Indoor Plants to Bring Into Your Home. Sow any time soils are above 40°F. how do you grow iceberg lettuce I've tried but only got big leaves no head like in the grocery store what am I doing wrong? Reduce the water volume so you do not make divets in the soil. Submitted by Urbankisaan on April 7, 2020 - 6:22am. When harvesting outer lettuce leaves, is there a general rule of thumb regarding the amount that can be taken and how frequently? Submitted by Anthony on May 7, 2017 - 3:53pm. Fertilize 3 weeks after transplanting. Submitted by Roadrunnr23 on October 23, 2017 - 1:53am. I'm leading a research work in order to investigate the transmission of hereditary information from the lettucce. When this happens, leaves can become bitter. I would also appreciate whether you would be able to do the same with salt. Put the leaves in a bowl of cold water with ice cubes and soak for about 15 minutes. Or mix the new garden soil and compost with the existing dirt, then put the weed barrier down before planting? Covering the plants with it reduces soil evaporation and keeps the plants from frying, wet or dry, in the heat of the day. The leaves will taste bitter and the plant will look weak and no longer be producing leaves. For either seeded or transplanted lettuce, have 12 to 15 inches between each row. It is low in fiber and it has high water content. Plant in the spring, starting two weeks before frost. Lettuce seeds can sprout as early as 2 days if the soil temperatures are between 55 and 75F (13-24C). Check out this video to find varieties of lettuce and salad greens that you can grow in containers for an urban garden! Or, if the plant has reached the desired maturity, the entire plant can be pulled. Cut the leaves off as close to the base of the stem as possible. Mature lettuce gets bitter and woody and will go bad quickly, so check your garden everyday for ready-to-harvest leaves. Submitted by The Editors on October 23, 2017 - 2:31pm. You don’t want to let your lettuce reach full maturity before harvesting because the leaves get bitter. Try these eight great salad recipes with your harvest! Cover the seeds with ¼ to ½ inch of soil. Just look at it. If you're planting in the winter, do this 3 weeks before the average frost date. Harvesting Lettuce. The variety planted will somewhat determine when to harvest lettuce, as will the season of planting. Should I put down a weed barrier over the dirt that is in there, then put new garden soil mixed with compost on top? Here are some basic tips to follow to ensure that you get a lot more lettuce from your buttercrunch harvest. You could till the soil and get rid of as many rocks as possible or cover with weed barrier (or even damp newspaper) and then add garden soil and compost. Submitted by Autumn on January 5, 2017 - 10:22am, if you take the leaves off the stalk will the plant die, Submitted by The Editors on January 6, 2017 - 10:08am. The pressure out of compression generates a lot of heat .I am an artist though but I HAVE MADE THIS OBSERVATION. Everyone has been telling me that Lettuce should be harvested before maturity otherwise it will bolt/ go bitter. What happens next? Lettuce makes the perfect base for any number of salads. You can use scissors and cut your lettuce off at the soil. Try to keep them out of the heat of the sun. PlantInstructions.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for websites to earn referral/advertising fees by advertising and linking to Amazon.com.