Grasses, shrubs, and trees all provide fuel for wildfires. overgrown underbrush chokes up natural habitat and competes for our most valuable resource, Water If your property is located in or near natural vegetation, you live in the wildland–urban interface and are at real risk from wildfire. The good news is, you can make a big difference. With the right defensible space and mitigation plan, you can better protect yourself, your family, your pets, your home, and your property.