Thornless Blackberry and Peach Tree - At the end of the bearing season cut the fruited canes off down to the ground. (see descri

Thornless Blackberry and Peach Tree - At the end of the bearing season cut the fruited canes off down to the ground. (see description) http://www.ehow.com/how_5050096_grow-thornless-blackberries.html

Blackberries produce fruit on 2 year old canes, never cut the entire plant to the ground or you will not have berries every year.

Update 12/7/11: Found another link with more pruning instructions and helpful pics:
http://www.wvu.edu/~agexten/hortcult/fruits/prunblkbr.htm
Something to keep in mind is that this is the WV ag. extension and what's Winter in WV might not be Winter in MD.