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Parris Island Cos Romaine Lettuce Seeds

Parris Island Cos Romaine Lettuce Seeds

0220

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.

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~2.0 g

(~1,330 seeds)

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  • Variety Info
  • Sowing Info
  • Growing Info
  • Learn More

Variety Info

Days to Maturity: 21 – 68 days

Family: Asteraceae

Type: Romaine Lettuce (Learn more)

Native: Unknown; lettuce has been in cultivation for a long time.

Hardiness: Frost-tolerant annual

Exposure: Full sun to part shade

Plant Dimensions: 10"–12" tall, 8"–10" wide

Variety Info: 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.

Attributes: Heat Tolerant, Frost Tolerant, Tipburn Resistant, Mosaic Virus Tolerant

Sowing Info

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 ⅛"

Seed Spacing: A group of 3 seeds every 10"

Row Spacing: 10"

Thinning: When ½" tall, thin to 1 every 10"

Growing Info

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.