How Do You Grow Lettuce In A Greenhouse?
Fresh lettuce can be grown year-round in greenhouses. It grows well in cooler weather but may develop spindly growth in higher temperatures, according to Colorado State University Cooperative Extension. The time from planting to harvesting ranges from 10 to 15 weeks, depending on the variety of lettuce that is grown. There are different varieties of lettuce for each growing season. Winter varieties are the slowest to grow but are hardy and can sustain a light frost. Summer varieties may need ventilation to keep leaf temperatures cool. There are basic steps to growing lettuce in a greenhouse. Plant lettuce seeds in seed trays. Sow the seeds ¼ to ½ inch deep, provide sun or artificial light and maintain a cool temperature, around 60 to 65 degrees. Lettuce grows better in cooler temperatures and may not germinate at 80 degrees or above, according to Colorado State University Cooperative Extension. Prepare the greenhouse’s soil for the seedlings. Lettuce needs nutrient-rich soil that drain
