Seed Potato Mix, 4 lbs. (Certified) 4 lbs. Certified Seed Potato Mix Heirloom potato mix of our best sellers. Get the best of 4 varieties including Yukon Gold, Red Pontiac, Russet Burbank and Kennebec seed potatoes. 100% Non-GMO, Heirloom & Disease Free Potato Seeds Yields up to 40 lbs. of fresh garden potatoes. Fast and Free Shipping on all potatoes!