Harvest time for blackberries typically runs June-August, but new varieties of fall-bearing blackberries allow harvests to continue through September – potentially boosting consumption and demand. Blackberries are considered a “bramble” crop, so named for the thorns that cover many varieties of the plants. The ideal temperature for blackberry production is between 80 and 85 degrees. The blackberry plant is called a “cane.” There are essentially three types of blackberries: 1. erect thorny blackberries, 2. erect thornless blackberries, 3. trailing thornless blackberries. The erect blackberries are bushes that support themselves. The trailing blackberries have long canes that must be trellised for support.