It has relatively few calories by weight because of its high water content.Iceberg lettuce is a good source of calcium, fiber, iron, potassium, and vitamins A and C.
By cutting the plant at the base and leaving the roots to grow, new leaves will sprout, giving Iceberg lettuce a cut-and-return again quality. Cut heads at the crown simply above soil level. Or, you can remove the whole plant if you desire a head of lettuce. As the plants grow, you can harvest the outer leaves only, leaving the inner leaves to develop. For the best flavor and crisp texture pick lettuce when you need it and use it immediately. When the head is large and feels tightly packed it is ready to cut. Iceberg lettuce comes to maturity in 50 and 90 days to grow. You may also have problems with fungal diseases if you water lettuce plants too much. Pests and diseasesĪphids, flea beetles, slugs, snails, leafminers, and whiteflies are common garden pests found on lettuce plants. Plant seed in late summer for a fall crop. Seed may also be planted directly in the ground about 2 weeks prior to the last spring frost date.Īdditional seed may also be planted in the ground from the last spring frost date to mid-June at two-week intervals for purposes of extending the harvest season. Start seed indoors about 6-8 weeks prior to last spring frost date.
Use organic alfalfa meal or a slow-release fertilizer. Lettuce prefers soil that is high in organic material, with plenty of compost and a steady supply of nitrogen to keep if growing fast. Bitter leaves are an indication of excess heat, over or under watering, and overmaturity. It grows best with consistent watering throughout the growing season. Temperatures above 27 ☌ (81 ☏) will generally result in poor or non-existent germination of lettuce seeds. Grow this plant in the cooler months for the best results. When temperatures rise to 75 and 80 degrees, the lettuce plant will try to flower and produce seeds, which is not good if you want to harvest your lettuce. It prefers optimum temperatures are between 60 to 65 degrees Fahrenheit. It grows well in fertile, well-composted, medium moisture, well-drained, nitrogen-rich soils with a pH of between 6.0 and 6.8.
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It thrives best in cooler temperatures, desiring full sun in cool weather and light shade in warmer weather.
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How to care for and grow Iceberg lettuce Light It is a delicious addition to salads and perfect for lettuce wraps. Iceberg lettuce is crunchy and juicy with a mild, sweet flavor.
The leaves vary in color depending on the particular cultivar, but the outer leaves are typically light green while the inner leaves range from pale yellow to a translucent white. Iceberg lettuce is also called crisphead lettuce that has crisp, light green leaves that are formed into a densely packed head and are concentrated with a high-water content.
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