Cultural data: field planting Growing season: Cool season Days to maturity: approx. 67-74 days from transplant for spring plantings. Germination relative to soil temperature: best started in a greenhouse with steady temperature of 70ºF. Avoid fluctuation of temperature until seedlings are at transplant stage. Cultural information: avoid extremes in temperature when sowing seeds. Extremes can cause plants to bolt. Plants prefer air temperature in the 60-75ºF range. Seed count: approx. 21,000 seeds/oz. or 336,000 seeds/lb. Projected seed usage: similar to head lettuce. Diseases and pests: Molds and rot. Protect from excessive moisture. Harvesting: Cut plants off at surface.