We have a mild winter, kinda like mid-US. Not long or hard, snow comes and doesn't stay too long. The land is pretty flat, get some wind there. My brother-in-law has a wooded acreage where we started with the pecan trees, I guess we could plant guava between the acacia, willows, pecans and birch trees to protect them from the wind. He heats with the acacia and birch. We'll see soon, I want to go down again in spring.How cold does it get in winter? Once well established, the pineapple guava can survive moderate winters, but can't take much wind.