Buttercrunch set the standard for classic butterhead type lettuce for many years. Soft, buttery-textured leaves enclose a crisp, juicy, loose inner head of blanched, sweet-tasting leaves. Very heat tolerant and slow to bolt, Buttercrunch stays mild long after others have turned bitter. Developed by George Raleigh, Cornell University, and an All America Selection for 1963. 65 days Sprouts in 7-10 Days Ideal Temperature: 60-80 Degrees F Seed Depth: 1/4" Plant Spacing: 8" Frost Hardy: Yes 4-8 hours of Sun Lactuca sativa