Beets need an alkaline soil, and the addition of a pound of lime for each square yard of bed will sweeten the soil. 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.
Maintenance Quality beets depends on a steady moisture supply. A light mulch around young beets will help the soil retain the necessary moisture. They do not tolerate weed competition, but be careful not to damage the roots when weeding. Beets are sensitive to boron deficiency, which causes blackspot, sickly growth, and poor taste. Only minute amounts are needed, and if you use compost, the soil will be adequate.