Parris Island Cos Romaine Lettuce Seeds | Heirloom, Non-GMO

Parris Island Cos Romaine Lettuce Seeds

Grow Parris Island Cos, an upright romaine lettuce with green leaves, a mildly sweet flavor, and crisp, juicy midribs. This annual heirloom, non-GMO variety is described by the supplier as tolerant to lettuce mosaic virus.

Product Details

• Botanical name: Lactuca sativa
• Variety: Parris Island Cos
• Life cycle: Annual
• Days to maturity: 65–70 days
• Supplier-listed USDA Hardiness Zones: 3–9 as a seasonal growing range
• Color: Green
• Flavor: Mildly sweet
• Growth habit: Upright
• Light: Full sun or partial shade
• Soil: Moist, well-drained
• Sow outdoors

How to Grow

Sow seeds outdoors 1/8 inch deep, about 1 inch apart, in rows spaced 12–18 inches apart. Firm the soil lightly and keep it evenly moist. Allow room for the lettuce to grow, since crowded plants may develop a bitter taste.

For full-size plants, thin seedlings after emergence to provide adequate space. General extension guidance for romaine and other lettuce types suggests about 4–10 inches between plants; this is general lettuce guidance rather than a cultivar-specific supplier measurement.

Harvest

Harvest at approximately 65–70 days, before the plants become overmature. Parris Island Cos has green leaves, a mildly sweet flavor, and crisp, juicy midribs.

The supplier notes that this variety performs well in the Intermountain region and describes it as tolerant to lettuce mosaic virus.