Organic Non-GMO Jericho Green Romaine Lettuce - Open-Pollinated Bright green leaves, unique silky texture and sweet flavor even in the heat of the summer. Good selection for indoor or outdoor cultivation. Jericho has some tolerance to Powdery Mildew and Downy Mildew as well as excellent resistance to heat stress and Tip Burn. These beautiful heads are packed with 2 to 3 pounds of sweet, crisp leaves! Perfect for warm climates! 55 days. You know this Romaine can stand up to punishing heat -- it was bred in the desert in Israel! The hands-down taste test favorite, it's easy to grow and always a winner at the table. These 14- to 16-inch-high heads weigh in at a surprising 2 to 3 pounds, packed with scrumptious leaves. The bright green color is attractive, but it's the sweet, crisp flavor of Jericho that makes it a winner every time.
Jericho stands up to tip burn as well as heat, and won't bolt when summer arrives early. It tolerates both powdery and downy mildew, making it an excellent choice for gardeners in humid and rainy climates. In other words, Jericho is an all-around top performer! Lettuce thrives in cold weather and can be sown directly into the garden, starting in early spring. For an even earlier harvest, sow indoors; the seedlings don't mind transplanting. If a fall crop is desired, begin in late summer. Grow in single rows, plants spaced 18 inches apart, or in containers.
Lettuce thrives in cold weather and can be sown directly into the garden, starting in early spring. For an even earlier harvest, sow indoors; the seedlings don't mind transplanting. If a fall crop is desired, begin in late summer. Grow in single rows, plants spaced 18 inches apart, or in containers. CULTURE: Lettuce is hardy and can be planted as early as the soil can be worked. It is a cool weather crop and grows best at temperatures of 60-65°F (15.5-18.3°C). Careful variety selection is important for hot weather plantings. Sow every 3 weeks for a continuous supply of fresh lettuce. Organic Lettuce - Growing and Seed Saving Info When to Sow Lettuce can be seeded in the spring as soon as the soil can be worked. Days to maturity are from direct seeding in spring conditions, subtract 10-14 days if transplanting, subtract 7-10 days if planting in summer conditions, add 20 days if planting late summer-fall In certain areas, lettuce can be grown throughout the summer by choosing varieties which are heat tolerant; however, many lettuce varieties have difficulty germinating in soils above 75°F. Start transplants 3-4 weeks before setting out. Sow seeds 4 per inch in flats or small-cell plug trays, barely covering with fine soil. If sowing into flats, transplant 2 weeks later into plug trays, pots, or into another flat at 1-2" apart.
Harvest Cut lettuce holds best when harvested in the morning and cooled rapidly. For salad mix or baby leaf production, harvest individual leaves when they reach desired size, or cut evenly across the bed making sure to stay above the growing tip. For a continuous harvest, sow lettuce every 3 weeks. Seed Saving Instructions Self-pollinated. Lettuce varieties will not cross pollinate with each other even at short distances, but beware of any wild lettuce which can cross with lettuce. Allow plants to "bolt" and eventually flower. Under wet conditions lettuce plants may need to be covered with a rain cover or grown in a greenhouse to prevent fungus from infecting the plant and seed heads.
Carefully shake the seedheads into a paper bag to allow the mature seeds to be collected while leaving the immature seeds and flowers to keep growing. Gather every few days until no more seeds remain. Also, you can simply harvest the entire plant when about half of the seeds are mature and allow the rest to mature inside by standing up the plants in a box and on a cloth or tarp. Use an 1/8" screen to help with cleaning. Lettuce seed can remain viable for 3 years under cool and dry storage conditions.