With the exception of Cylindrica, beets are suitable for container growing. Beets thrive in cool weather, and can be planted in spring and late summer. Roots may become woody in very hot weather. They will tolerate a light frost, but not scorching heat. They germinate in about two weeks, Thin to 3 or 4 inches apart, then mulch with clean straw.
Beets can tolerate partial shade, however full sun is preferred.
Preparing the Soil Till to a depth of 6 to 8 inches. Work in plenty of organic matter to improve the soil. It is difficult if not impossible to grow good beets in clay soil without a raised bed . Rake well to remove stones and debris. If you need to fertilize, try superphosphate.