Thanks for the link, Lin! I find it interesting that our database shows it only viable to 20F, but Neil's article mentions plants surviving -26F! Is that just a typo, or will they tolerate brief extreme cold? I think our local climate has warmed a bit, as we haven't seen many days with negative temperatures in the last few years. Heh, USDA is trying to convince us that we're now zone 6a.
