International Bonsai Master Bjorn Bjorholm has a new podcast out titled “Bonsai Network Podcast | Overwintering Bonsai“. Bjorn gives some great tips and suggestions on how to protect your Bonsai trees. Bjorn gives detailed information how cold effects the tree cells. Bjorn suggested misting trees every once in a while if there in a hoop house or even garage. I have added the podcast to the Winter Care page under Bonsai Basics.  Bjorn mentions ordering poly from Greenhouse Megastore in the podcast, I recommend them to, great company to work with.