Black Butte

This not new Oregon's variety demonstrates one of the largest berries from all known today blackberry cultivars. It's fruit are really huge, have uniform cylindrical shape and deep black color. Berries are about 25 mm in diameter and 50 mm long. Some berries weight can achieve more than 20 g (typically 9-12 g). Black Butte has thin thorny trailing stems, but spines density and size are significantly less than other giant cultivars (Kiowa or Karaka Black, for example). Stems length is about 2 m, bushes are not very vigorous and high (up to 2 m).
Black Butte's berries ripen in late June or beginning of July, plants blossom in early May. In contrast to large berries, Black Butte's productivity is not high, 1-3 kg per plant. Fruit are placed at the end of laterals, can be picked up easily. Ripen berries, in most cases, have taste with strongly pronounced acid.
Cold hardiness is moderate, up to minus 15 C, variety requires winter shelters.