3000 PARRIS ISLAND COS ROMAINE LETTUCE Lactuca Sativa Vegetable Seeds COLOR: Green with yellow flowers HARVEST: 72 Days PLANT HEIGHT: 12 - 18" . . . PLANT SPACING: 12 - 15" LIGHT REQUIREMENTS: Sun . . . SOIL / WATER: Average These dark green heads of lettuce are an heirloom variety with white hearts. They easily grow up to 10 long and the leaves are loosely folded on heads. Romaine Lettuce is excellent for salads (especially Caesar salads!) and garnishes.