Boysenberry (Rubus ursinus × Rubus idaeus)
Boysenberry is thought to be a cross hybrid between a blackberry (Rubus fruticosus), loganberry (Rubus x loganobaccus), and red raspberry (Rubus idaeus). It was created by a horticulturist Rudolph Boysen, who resided in California, in the 1920s. Boysenberries have a slightly sweeter flavor than a blackberry which makes it very popular when it comes to canning or making desserts, such as pies and jam. It has a dark maroon color when ripe but sometimes can be slightly red. It is round in shape and similar in size to a blackberry or a marble and is firm in its texture but can be very juicy when ripe. This fruit is commonly grown in both New Zealand and the West coast of the United States, more specifically California and Oregon. Boysenberries are grown on thorny canes or brambles. These can grow very high if not properly cared for. As a rule of thumb, it is recommended that you keep them pruned no higher than 3 feet to ensure the growth of more berries if growing in pots. On average they mature at 5 feet high and 5 feet wide. The USDA rates the Boysenberry between 5 and 9 in the plant hardiness zone. Boysenberries prefer a warm, dry climate to grow and grow best in full sunlight and in sandy loam or clay-rich soil that has been well drained. The soil should also have a ph level ranging from 5.8 to 6.8. Daily watering is needed since it requires a lot of sunlight. It takes about one full year for a Boysenberry plant to produce its canes needed to grow the fruit itself. After year one, a Boysenberry will begin growing fruit on its canes and can be harvested around the 2nd year of being planted.