Early lettuce seed Sunland

mosaic virus resistantsummer

New! Heat-tolerant romaine for heads and hearts. Earlier and more compact than Sparx, with thicker, more savoyed leaves. Selected for summer performance, with improved yield and consistency. Maintains straight ribs and a tight, clean base for a nice presentation post-harvest. Plant Variety Protected. U.S. Plant Patent #10,959,387. MT0-30. Disease Resistance: • Corky Root (Intermediate) • Tomato Bushy Stunt Virus (High) Specs: • Packet: 500 seeds • Avg. 370,600 seeds/lb SCIENTIFIC NAME: Lactuca sativa CULTURE: Lettuce is a hardy, cool-weather crop and can be planted with your earliest worked soil. It grows best at 60–65°F (16–18°C) and germinates best below 70°F (21°C), so careful variety selection is key for success in hotter weather. Sow every 2–3 weeks for a continuous supply of either full heads or salad mix. THERMAL DORMANCY: Lettuce seed can enter thermal dormancy when exposed to high temperatures. Optimum germination results at soil temperatures of 60-68°F (16-20°C). The priming process in pelleted lettuce seeds broadens the temperature range in which the seeds will germinate, overcoming some of their thermal dormancy. TRANSPLANTING for HEAD LETTUCE: 3–4 weeks before field planting, sow in 128-cell trays barely covered with vermiculite or fine soil. If necessary, utilize shade and frequent misting to keep trays cooled below 75°F (25°C) during germination. Young plants properly hardened at least 3–5 days before planting can survive temperatures as low as 20°F (-6°C). Transplant iceberg, romaine, and butterhead lettuce 10–12" apart in rows 15–18" apart, other types 8–10" apart in rows 12–18", and mini heads as close as 6" in a grid.