This is a fancy green bean for which supermarkets get a premium price. You're assured an excellent yield of dark green 6-7 inch long, tender and tasty beans for canning, freezing or table use. Mature in 52 days. Planting guide: After ground has become warm and danger of frost is past, plant in rows 2 to 3 feet apart. Drop seed about every 2 to 3 inches in the row and cover with 1 1/2 inches of soil.