I just got a male and female super hardy kolomikta kiwi. Any advice on how big they get (I'd like to keep both of them in an area about 4 ft by 6 ft on an arbor) and how to prune them? Are they like grapes, so I can use the spur or cane method? I'm trying to maximize fruit production.

BTW, I got them this winter from Burnt Ridge Nursery, they were a very good price (12.50) and size (2 ft). The buds are swelling and it looks like the male will bloom.