Jukka Kallijarvi, a NAFEXer from Finland recommends the Siberian Blackberry for growing in Northern climates. Does anyone know who might sell it here in the States? Jim Fruth Brambleberry Farm Pequot Lakes, MN 56472 For jams, jellies, syrups and more: www.jellygal.com 1-877-265-6856 (Toll Free) 1-218-831-7018 (My Cell)