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. If you're in doubt, sprinkle a little borax around the plant. Beets are seldom bothered by insects or disease. They loose flavor and the centers become woody as they get larger.