British Columbia: Blackberries

I live and garden in a zone 3. I would like to grow thorn less blackberries this year.
Which varieties can you recommend and where can I get them in BC?

 

I ordered Chickasaw blackberries (I think they are thornless- hope so) this year from Henry Fields. I don't know if they ship to canada though. There is a whole list of the types they offer in their catalog (which is free upon request.) It seems to me that the chickasaw were quite cold hardy according to the catalog. I am in quite a different zone than you so I don't exactly keep the best tabs on the cold tolerance below my zone 6. I hope this at least pointed you to a potential source.

 

Try Vesey or Buckerfields (Canada)... they will also ship too!