how long do you grow detroit supreme beets before harvest
Eat thinned seedlings like spinach; they do not transplant well. It takes about 60 days for a beet to reach 11/2 inches in diameter, a popular size for cooking or pickling. They will quickly grow larger if they have plenty of water. Pull the beets up when they reach your desired size.Types of Beets Beet lovers have several colorful beet types to choose from.lant beets in rows spaced 12 to 18 inches apart. 1  Detroit Dark Red, harvest at 60 days, is a deep red, finely-grained sweet standard beet. 2  Golden, harvest at 55 days, has gold-colored skin and flesh. 3  Lutz Green Leaf, harvest at 80 days, is often grown as a fall crop; its red flesh has lighter zones.