Where can I find chilling requirements for various plants? I recently read that azeleas are mostly deciduous, and need some winter. My thought is to put it outside in late summer, let it experience fall, and bring it in before it's killed by our winter. I was thinking of doing the same with a japanese maple. (We are zone 3a, so keeping it outside all witner is a bad idea.) An hour of internet searching so far has failed to find requirements for anything but blueberries.