Keeping shrubs and other flammable material away from a home’s exterior walls can help make it more resilient to wildfires. Published on August 19, 2014 in Scientists say small, practical steps offer best hope to protect homes from wildfiresFull resolution (500 × 375) Keeping shrubs and other flammable material away from a home’s exterior walls can help make it more resilient to wildfires. Keeping shrubs and other flammable material away from a home’s exterior walls can help make it more resilient to wildfires.