Beets are extremely easy to grow, and respond very favorably to the cooling conditions of late summer into fall. Variations of daytime and nighttime temperatures provide the perfect conditions for growth. Beets are heavy water users due to the rapid formation of the edible root. To keep the soil consistently moist, put a 1-2” layer of compost or mulch over the row. Because beets are very shallow-rooted, cultivation around the plants with a tool should be minimal; if weeds initiate, it’s best to pull them by hand. Grow a lot of beets so they can be enjoyed from ” baby ” size to full maturity.
Source: The Cook’s Garden