Ollalieberry (black raspberry) in Victoria, British Columbia for sale

The name for the 'Olallie' blackberry released by the USDA-ARS (in collaboration with Oregon State University). The berry was a selection from a cross between the 'Black Logan' (syn. 'Mammoth'), developed by Judge James Logan in California, and the youngberry, which was developed by Byrnes M. Young in Louisiana. According to Judge Logan, 'Black Logan' was a cross between the eastern blackberry 'Crandall' and the western dewberry'Aughinbaugh'.[1] 'Youngberry' was from 'Phenomenal' x 'Austin Mayes'. 'Phenomenal' in turn is a cross of the 'Aughinbaugh' western dewberry and 'Cuthbert' red raspberry and so has a similar background to Logan's 'Loganberry' because it shares a parent.[2]
They are a heavy producer and bear their fruit 3-4 weeks ahead of their cousin blackberry. They grow in many types of soils and can produce in partial sun, ideal for along a fence.