In order to prevent excessive winter injury, avoid placing canes up on the trellis until late winter or early spring. Boysenberry the berries are large, strongly flavored, soft, and medium to late maturing. When disease free plants are used, Boysenberries may produce well for 4 to 6 years. One selection is thornless, the other has very small thorns. Dewberry dewberries ripen early in the season, just ahead of several of the true blackberries.
Plants are moderately vigorous and productive.
Dewberries are somewhat more winter hardy than Boysenberries. Youngberry the berries are dark wine colored, large, sweet, and soft when ripe. They are not as flavorful as Boysenberries. The plants have small thorns, and are vigorous and moderately productive. Youngberries ripen somewhat earlier than Boysenberries.