North American Fruit Explorers mailing list at ibiblio

[anton ptak <antonptak@gmail.com>]

on the subject of blackberries, i was considering a trial planting of 
the supposedly hardy prime jim or prime jan, offered through nourse 
farms.  i know a couple growers who have recently planted as a trial 
planting but don't think they've had enough time in the ground for an 
assessment.  anyone tried these varieties in the northern climes yet 
with any results to speak of?

anton ptak
w. wisconsin zone 4a