In order to prevent excessive winter injury, avoid placing canes up on the trellis until late winter or early spring. 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. Plants are moderately vigorous and productive.
Dewberries are somewhat more winter hardy than Boysenberries.
They are not as flavorful as Boysenberries. The plants have small thorns, and are vigorous and moderately productive. Youngberries ripen somewhat earlier than Boysenberries. However, this plant has not been very successful in commercial production. It is not recommended for planting in warm climates unless it can be shaded.