Lettuce, Crisphead (Great Lakes 118)

Botanical Interests Great Lakes 118 Crisphead Lettuce Seeds

No other lettuce type provides the incredible, cool crunch of crisphead (also called iceberg). 'Great Lakes 118' is a 1960s improvement over the original 'Great Lakes'; heat tolerant, and bolt resistant. Toss it in with your salad mixes or top your sandwiches to liven them up.

Sowing Information:

• Light: Full sun to part shade
• 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.
• 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.
• Seed Depth: Surface to 1/8"
• Seed Spacing: A group of 3 seeds every 8 inches
• Row Spacing: 10 inches
• Thinning: When 1/2 inch tall, thin to 1 every 8 inches
• Days to Emerge: 5-10 days
• Days to Maturity: 68-82 days

Growing Notes:

• 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.
• Variety Info: Very compact, round heads with green outer leaves and a blanched center. 'Great Lakes 118' is heat tolerant, and bolt, scald, and tip burn resistant. An improved selection over the original, award-winning, 'Great Lakes', which was bred to be larger and firmer than the crisphead lettuces developed earlier in Europe, known as Batavia or summercrisp types.
• Attributes: Good for containers, heat and frost tolerant, bolt resistant