Winterkeeper Lutz beet seeds are also known as Lutz Green Leaf. These unusually large round red roots remain sweet and tender up to 15cm (6") in diameter. The variety produces vigorous green tops for bunching in the summer. For winter storage, sow mid-July in rich soil. In fall, cover the bed with a tarp or straw mulch to prevent freezing when the weather turns cold. It happens that this variety makes particularly tasty microgreens and baby leaf greens that work well in salad mixes. Its best feature, though, is the cold tolerance and suitability as winter storage beets.