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.
Botanical Name: Lactuca sativa
Days to Maturity: 68–82 days
Native: Unknown; lettuce has been in cultivation for a long time.
Hardiness: Frost-tolerant annual
Plant Dimensions: 6″ diameter
Variety Information: 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 Tolerant
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 ?”
Seed Spacing: A group of 3 seeds every 8″
Row Spacing: 10″
Thinning: When ½” tall, thin to 1 every 8″
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.
This packet sows up to 148 feet. 660 seeds.