60 days. Heirloom, Non-GMO. Certified Organic. This mix of Detroit Red and Golden Beet seeds will make for a colorful and tasty harvest with all the warm shades of summer. This is a packaged mix of seeds for both red and golden Detroit Beet gardening seeds. This mix can work perfectly for a colorful vegetable harvest. The Beets are great for cooking or pickling, and the greens can work well as part of a salad.