Lettuce, Parris Island Cos Romaine Lettuce Seeds – Heirloom

Variety Info.:

Botanical Name: Lactuca sativa

Days to Maturity: 68 days

Family: Asteraceae

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.

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.