Optima
Lactuca sativa
HOW TO GROW LETTUCE
Start indoors 4-5 weeks before last frost, plant out 4 weeks before frost. For fall harvest, transplant 8–10 weeks before first frost. Direct seed after last frost 1” apart, thin. Plant every 2–3 weeks to ensure continuous crop. Avoid sowing one long row all at once. Choose bolt-resistant varieties for summer harvest. Lettuce seed can enter thermal dormancy at high temperatures, see optimum germination temps. For continuous winter cold frame harvest from Elliot Coleman’s book ‘The New Organic Grower’: September 1 to 10, sow every 3-1/2 days. September 10 to 18, every 2 days, September 18 to October 10, every 3-1/2 days, October 10 to November 15, every 7 days. November 15 to December 15, every 10 days. Soil pH 6.0-6.8. Hardiness zones 6-9. Annual.
Days from maturity calculated from the date of seeding. Average 22,400 seeds per ounce. Average 131M seeds per acre. Federal germination standard: 80%. Usual seed life: 3 years. Isolation distance for seed saving: 25 feet.
Planting Depth 1/4”
Soil Temp. Germ. 60–68˚F
Days to Germ. 5-14
Plant Spacing 8-12”
Row Spacing 16-18”
Days To Maturity 50-60
Full Sun, Moist Well Drained
Days from maturity calculated from the date of seeding. Average 22,400 seeds per ounce. Average 131M seeds per acre. Federal germination standard: 80%. Usual seed life: 3 years. Isolation distance for seed saving: 25 feet.
Planting Depth 1/4”
Soil Temp. Germ. 60–68˚F
Days to Germ. 5-14
Plant Spacing 8-12”
Row Spacing 16-18”
Days To Maturity 50-60
Full Sun, Moist Well Drained
- 300 Seeds$4.10
- 3000 Seeds$15.50
Large dark green butterhead, thick leaves. Resistant to bottom rot, tip burn and downy mildew. Tags: Type: Butterhead, Harvest: Spring Fall, Color: Green, Heritage: Heirloom, Season: Spring Fall Winter, Certification: Organic.
Meet Your Farmer
We promote fair trade, organic practices and environmental responsibility throughout the Restoration Seeds supply chain. Below are the family farmers and seed suppliers who bring our open pollinated seeds to you.
Saltwater Seeds
Certified Organic by WA Dept. of Ag.
Seed grower since
We are focused on growing open-pollinated seeds adapted for the Maritime Northwest. We are inspired by the endless combinations of colors, textures, flavors, and shapes of the plants we work with.As a small, diversified business, we are committed to contributing to our small-scale agricultural economy by finding, selecting, and stewarding varieties that are productive, delicious, beautiful, and well adapted to our climate.
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