As scientists who study how vegetation ignites and burns, we recognize that well-maintained plants and trees can actually help protect homes from wind-blown embers and slow the spread of fire in some cases. So, we are concerned about new wildfire protection regulations being developed by the state of California that would prohibit almost all plants and other combustible material within 5 feet of homes, an area known as “Zone 0.”
Fire breaks like this are already mandatory in some parts of the state due to the danger and potential for wildfires. Though, the places I know that have this requirement, it’s 10 feet not just 5.