Last week I talked about how to make the area closer to your home more firesafe. Here are some more tips.
In areas 30-70 ft. away from your house plants should be trimmed and thinned to create well-spaced groups and help prevent a fire from spreading to your home. Be cautious with slopes. If you have a large lot, the fringe area should be inspected and maintained regularly to eliminate any build up of dry brush and litter. This reduces the chance of surface as well as crown fires.
Plant arrangements, spacing and maintenance are often as important as plant types when considering fire safety. Group plants of similar heights and water requirements to create a landscape mosaic that can slow the spread of fire and use water most efficiently. Use plants that do not accumulate dead leaves or twigs. Keep your landscape healthy and clean. On a regular basis remove dead branches and brush, dry grass, dead leaves and pine needles from your yard, especially within 30 feet from your home and at least 150 ft if you’re on a hill. Keep trees spaced at least 10 feet apart with branches trimmed at least 10 ft away from your roof. It’s best, however, to keep trees further from your house. Low shrubs can be closer in and herbaceous perennials and groundcovers can be nearest the home.
Extremely flammable plants have a high content of oil or resin and should be separated from each other, removed of dead branches and lower limbs and kept free of dry debris anywhere around your property. Extremely flammable pyrophytes like hollywood juniper, pines, fountain grass and Japanese honeysuckle will need a higher level of maintenance. Other common plants that are highly flammable are sagebrush, buckwheat and deer grass. Rosemary and purple hopseed also fall into this category. These contain oils, resins and waxes that make them burn with a greater intensity. If you have these plants on your property yearly pruning and maintenance is important.
Irrigation is vital in a fire safe landscape to maintain plant moisture especially within 30 ft around your home. Choose the right irritation system. While all plants can eventually burn, healthy plants burn less quickly. Consider drip irrigation and micro sprays for watering most of your landscape. Use sprinklers for lawns and other groundcovers or turf. Even drought adapted species and natives will benefit from watering every month or so during the dry season. Unwatered landscapes generally increase the risk of fire.
Mulching around your plants will preserve moisture in the soil and in your plants. Plantings beyond 30 ft. should be irrigated occasionally but to a lesser extent. As you get 70-100 ft from the home native plantings that require little or no irrigation should be used.
Using fire resistant plants that are strategically planted give firefighters a chance fighting a fire around your home especially within the 100 foot defensible zone. Each home or property is different and you will need to look at the unique qualities of yours in planning your firescaping. Some of the info for this column was obtained from two valuable booklets, ‘Living with Fire in Santa Cruz County’, prepared by Cal Fire and available free from any fire department or online and another booklet published by the Calif. Department of Forestry.