Crunchy, sweet leaves, buttery-green heart, and vigorous growth are a few ways to describe 'Parris Island Cos' romaine. Developed by the USDA and Clemson University around 1950, this nutritional, 10″-12″, upright lettuce will soon be a favorite in your garden and your kitchen, full grown or as a baby green in as little as 21 days. Ideal for lettuce wraps. Plants resist tipburn and are mosaic virus tolerant.
Botanical Name: Lactuca sativa
Days to Maturity: 21 – 68 days
Native: Unknown; lettuce has been in cultivation for a long time.
Hardiness: Frost-tolerant annual
Plant Dimensions: 10″–12″ tall, 8″–10″ wide
Variety Information: Upright growth with medium green, slightly savoyed (crinkled) leaves, crisp ribs, and buttery-green heart. 'Parris Island Cos' is a romaine-type lettuce developed around 1950 by Clemson University, and named after Parris Island in South Carolina.
When to Sow Outside: RECOMMENDED. 2 to 4 weeks before your average last frost date, and when soil temperature is at least 40°F, ideally 60°–70°F. Successive Sowings: Every 3 weeks until 4 to 6 weeks before your average first fall frost date. Mild Climates: Sow in fall and winter for cool season harvests.
When to Start Inside: 4 to 6 weeks before your average last frost date, and in summer when soil temperatures are too warm (above 80°F) to germinate lettuce seed.
Days to Emerge: 5–10 days
Seed Depth: Surface to 1/8″
Seed Spacing: A group of 3 seeds every 10″
Row Spacing: 10″
Thinning: When ½” tall, thin to 1 every 10″
Harvesting: Harvest in the morning, by cutting off at ground level. If regrowth is desired, cut the leaves higher, at 2″. For a continual supply, outer, individual leaves can be harvested at any stage of maturity, but leave at least half of the plant for regrowth.
This packet sows up to 369 feet. 1,330 seeds.