Parris Island Cos Romaine Lettuce Seeds - Lactuca Sativa, 500 seeds

Parris Island Cos Romaine Lettuce (Lactuca sativa) is a classic heirloom variety prized for its crisp, upright heads with tender, sweet green leaves. Perfect for salads, sandwiches, and wraps, this lettuce grows reliably in cool seasons and is well-suited for both garden beds and containers. Fast-growing and easy to harvest, it provides gardeners with fresh, healthy greens straight from the garden.

Seed Information

• Type: Vegetable Seeds
• Common Name: Romaine Lettuce, Cos Lettuce
• Variety: Parris Island Cos
• Genus: Lactuca
• Life Cycle: Annual
• Features: Crisp upright heads, heirloom variety, fast growing, nutritious leafy greens, excellent for salads
• Season of Interest: Spring and fall (cool season crop)
• Indoor/Outdoor: Outdoor or containers
• Sunlight: Full sun to partial shade
• Cultivating Difficulty: Easy
• Watering: Moderate, prefers consistently moist soil
• Climate: Temperate, Mediterranean, Humid Subtropical (cool-season growth)
• Growth Habit: Upright heads, 10–12 inches tall
• Soil Type: Fertile, well-draining soil rich in organic matter
• Soil pH: 6.0–7.0
• Planting Time: Early spring or late summer for fall crop

Growing Instructions

• When to Plant: Sow outdoors 2–4 weeks before last frost in spring, or late summer for fall crop
• Soil: Fertile, well-draining soil enriched with compost
• Sunlight: Full sun to partial shade
• Watering: Keep soil evenly moist; avoid letting it dry out
• Spacing: 10–12 inches apart in rows 12–18 inches apart
• Germination: 7–14 days at 55–70°F (13–21°C)
• Harvest: 65–70 days; harvest whole heads or outer leaves as needed
• Tips: Succession plant every 2–3 weeks for continuous harvest; provide shade in hot weather to prevent bolting