Black Butte blackberry variety
One of the largest berries from all known today blackberry cultivars, but has low productivity

Rubus subgenus Rubus Watson 'Black Butte'

Originated from a cross of ORUS 728-3 x ORUS 830-4

Variety denomination - 'Black Butte', tested as ORUS 1129-1

Plants are slightly thorny

Bushes have trailing canes

Fruit weight is 10 g

Berries have a oblong shape

Fruiting habit - floricane fruiting (summer-bearing)

Flowering on floricanes starts in the first week of May

Ripening date (regular) - fourth week of June

Productivity is 2 kg per plant

Soluble solids - 9.5%

Acidity - 1.5%

Cold hardiness is moderate

Heat tolerance is low

Country of origin - United States

Current status - obsolete or rarely used

Recommended replacement - Columbia Giant
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.

Is blackberry Black Butte sweet?
