For single packets, click here Heirloom with light-green, crinkled, fringed outer leaves and crisp, near-white inner leaves. Medium to large heads on this classic head lettuce. Days to Maturity:78 Sow Method:Start Indoors Sow Depth: Inch Spacing:18Inches Sun: Full Sun / Partial Shade Height:10 – 20Inches Fruit Size:12 Ounces Catalog Page: 44