Kiwi continues to survive

I've been trying to grow "Hardy Kiwi" for a few years now.  I think that that name is more than a bit of a misnomer as I've had a heck of a hard time keeping them alive.  Below are pictures of a 2+ yr old vine that has survived despite all odds.  I also have two other vines that are one year old that are barely hanging on.  The hope is that they will eventually bear fruit.  At this point it's just interesting to see if I can keep them alive.