Blackberry Plants "Von" Price Includes Four (4) Plants New NC University Variety Huge Producer Price Includes 4 "Von" Blackbery Plants with USPS Shipping. The plants are 2 inch starter plants shipped in 2 inch tray pots and are 4-6 inches tall. 'Von is the first erect thornless floricane-fruiting blackberry to be released from the NC State University breeding program. Von is named after Harvey Von Underwood who did research for NC State throughout the 60's and 70's. See more information under Product Description.