Hello Ian, The climate here in Gwynedd is a rather rainy sea climate (we are only 2-3 km from the sea), so no extremes of temperatures (although during this year's heatwave temperatures went up to 34 degrees C here). I have not encountered really hard frosts here since I moved from Amsterdam to North Wales. My Araucaria angustifolia is at present 85 cm high and I have planted it out this year. The available literature suggests that it can withstand short periods of frost from -5 to -8 C, comparable with Wollemia. The only truly winterhard Araucaria is the Monkey Puzzle, which absolutely thrives in this region. The other Araucariae, certainly heterophylla (the Norfolk Island pine) are much less reliable. You don't see them at all here in situations other than under glass. So I am very much in the experimenting business. See what will work, trial and error etc. Araucaria angustifolia looks promising. It is a tree from the lower mountain ranges of southern Brazil, Paraguay and northern Argentina, so at times in its natural habitat it will encounter some frosts. Whether A. angustifolia survives a winter depends on various factors, like degree of exposure, length and severity of frost periods and age of the tree. The older the tougher it will get. I will certainly for the next few years wrap my Araucaria angustifolia along with the Wollemias up warm in winter and I will experiment with gradually exposing them a bit more to the winter elements and all the while keeping a close eye on them. I have been going throug various trials (and errors!) with trees that are not fully hardy. Unfortunately I lost two Agathis australis (Kauri trees from New Zealand) in the last winter, so I have become much more cautious. It is always sad to end up with dead trees in spring. Very much of course depends on your local climate. If you have longer frost periods it would propably be better to keep your small tree under glass for another winter. Plant it out next spring and in the next few years I would surely give it good winter protection. I am an amateur, so my advice is that of an amateur, but one with a passion for trees and an attitutde of: let's see what will grow outside and survive the winters here. Best regards, Ben