Beta vulgaris (90 days) Sugar beets are a natural source of sugar and where most of the sugar industry derives its sugar from these days. Beets are up to 1 foot long and can weigh from 3-5 pounds. Seeding rates are from 10-15 lb. per acre. That means you need to thin them to make sure they have enough room to grow. Approx. 1,500 Seeds per ounce. Beet Seeds - Sugar Beet Very frost tolerant. Tops can grow 1-2' tall. Beet tops can be eaten, lightly grazed or fed to animals. Any type of beets do not like heat. Optimum temperature is 55-80 degrees. It is very important to keep your seeds moist after you have planted and be patient. It takes two or three weeks to see sprouts. Seeds Per Package: 2 g - Approximately 100 Seeds 4 oz - Approximately 6,000 Seeds 1 lb - Approximately 24,000 Seeds 5 lb - Approximately 120,000 Seeds 25 lb - Approximately 600,000 Seeds