According to Wikipedia: “A hardiness zone (a subcategory of Vertical Zonation) is a geographically-defined area in which a specific category of plant life is capable of growing, as defined by climatic conditions, including its ability to withstand the minimum temperatures of the zone.”
I garden in Zone 10, which means I can grow just about anything and I have a long growing season. I have learned not to prune things late in the year when most people are cutting their plants back for winter. In San Diego, this only prompts things to shoot up and bloom immediately and when we have a nice sunny day (80 degrees right before Xmas!) then my plants get confused only to be frost-bitten in January or February. If you live in a warm zone like this, don’t prune until you want the plant to grow for spring. Prune during a waning or new moon to stimulate growth…or so goes the lore.