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?
Useful Growing Guides:
Berry Soil and Nutrient Management – A Guide for Educators and Growers. M. Pritts, C. Heidenreich, L. McDermott, and J. Miller; Cornell University, Ithaca, NY
High Tunnel Raspberries and Blackberries. AJ Both, Kathy Demchak, Eric Hanson, Cathy Heidenreich, Greg Loeb, Laura McDermott, Marvin Pritts, and Courtney Weber; Cornell Cooperative Extension
Raspberry and Blackberry Production Guide. L. Bushway, M. Pritts, D. Handley; Natural Resource, Agriculture, and Engineering Service Cooperative Extension, Ithaca