I'm supposedly in 8A, but based on the description of that zone, and our wacky weather this spring, I think we're more like zone 7, even bordering on 6, now. I put the potatoes in the end of January, they got frozen six or seven times and snowed on twice, but I checked them today and they're starting to grow. According to people who have lived here a while, we shouldn't normally get freezes after early January, but we've been hot one week and snowing the next for the last two months. Two weeks ago we had a freeze, and today it was nearly 80. :/