A Note About Conifers: While confiers are a beautiful and diverse category of plants they are unfortunately rather flammable. It is important to not plant them right next to your house.
Making Your Landscape More Fire Resistant
In Rural settings: It is important to think about what makes a fire, which is raging toward your house from the forest or coming across the neighbor’s wheat field, decide to stop or at least slow down and give you a chance to put it out.
- Green plants: Keep a green low buffer between you and the neighbors or the field or forest. That slows down a fire. A large green lawn between you and the combustibles is a very good deterrent. Green shrubs and trees which are well hydrated also do not burn quickly. However, NO conifers are recommended.
- Bark mulch VS Wood chips: If you have a bare soil area rather than lawn, around your house, do not cover it with bark mulches. Instead, use wood chip mulches (these are most easily gotten from Arborist chipping work). The wood chip mulch looks a bit different than the normal bark mulch. The wood chips are less expensive. Bark mulches that are normally what people use, and the natural bark of pine or fir these products have oils and waxes in them that burn quickly and prevent them from soaking up water. Wood chips from a chipper hold a great deal more water initially and they soak it up quickly if it is watered to prevent the spread of a fire. This makes wood chips much slower to ignite than bark.
- Rock chips/gravel: These are also a viable option for open areas and do not burn.
- No Rubber chips: Some people use these in landscapes, they can ignite quickly and burn with a terrific amount of smoke and off gassing. These are only recommended for children’s play areas.
- Create Zones: Though more of a financial investment one can create zones with stone walls, or with patios and paths of crushed gravel or other non-burnable material. These are most helpful if they are installed closer to the house.
In Suburban settings: There are many different zones already established in a more suburban setting, as streets divide up yards and create barriers. You can follow the same recommendations as the rural areas on a smaller scale. There are no ‘Fire-Proof’ plants. However, using any high moisture plants which grow close to the ground and which are irrigated is the closest to being fire-proof! Larger shrubs and trees such as roses, currants cotoneaster and most deciduous and evergreen species of broadleaf trees and shrubs are more fire-resistant when irrigated. . Avoid more flammable plants and materials like conifers and rubber chips.
Fire Retardant plants would be best used where/when irrigation is not an option. They can all be mulched with wood chips. Pictured below are some more common fire-retardant plants.
In summary, the larger the size of property owned, the more important it is to keep a buffer area around your house to prevent ignition. If that cannot be managed, create open spaces around the house with wood chips and gravel, (such as patios). Where there is brown dry grass around the house, it should be cut low. If you are using drought tolerant fire-Retardant plants, they should be surrounded by wood chips or gravel. Keeping live Coniferous trees/shrubs and needles, away from the immediate area around your house is the ultimately one of the best fire resistant protections of all.
Source: Linda Chalker-Scott Dr. Linda Chalker-Scott has a Ph.D. in Horticulture from Oregon State University and is an ISA certified arborist and an ASCA consulting arborist.








