By crossing a loganberry, a raspberry, and a Pacific blackberry, Rudolph Boysen developed the boysenberry, but it was cultivated and popularized by this individual.
- George Washington Carver
- Luther Burbank
- Walter Knott
- J. M. Smucker
Daily Quiz for July 24, 2011
By crossing a loganberry, a raspberry, and a Pacific blackberry, Rudolph Boysen developed the boysenberry, but it was cultivated and popularized by this individual.