Well, that sucks. Maybe, just maybe. You should not be trying to grow an Avocado tree outside in Colorado in a zone that is not intended for it. Greenhouse, sure.. But outside? Yeah, that's kind of stupid. Archive: https://archive.today/CDEBN From the post: >>Fire crews are investigating a fire that is believed to have been started by an avocado tree warming apparatus, according to a social media post from Mountain View Fire Rescue. On Saturday night, Mountain View Fire Rescue and Lafayette Fire responded to reports of a structure fire on Daily Drive in Erie. When the crews arrived at the home, they discovered that a device that was heating an avocado tree had caught fire, which spread to the side of the house.