Botanical Name: Lactuca sativa
Days to Maturity: 50 days
Family: Organic, Heirloom
Hardiness: Unknown; lettuce has been in cultivation for a long time.
Plant Dimensions: 6"–8" tall, 8" wide
Variety Information: 'RED SALAD BOWL' has deeply lobed, burgundy leaves that form a large rosette if proper sowing distances are observed. Red color is more intense in cool weather. 'GREEN SALAD BOWL' has lobed, wavy green leaves forming a rosette. Both are resistant to bitter flavor during the heat. Both varieties in Salad Bowl Blend are from the 1950s.
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 ⅛"
Seed Spacing: A group of 3 seeds every 8"
Row Spacing: 12"
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.