DEFENSIBLE SPACE
What is Defensible Space?
0-5 ZONE
- Create a no-fuel, or low-fuel, zone 0-5 ft around your home
- Clean roofs and gutters of dead leaves, all debris and needles that could catch embers. Maintain clean gutters.
- Use hard surfaces, such as concrete or fire-resistant materials.
- If planting, use widely spaced, non-woody, low herbaceous vegetation away from vents, windows, and interior corners.
- Remove combustibles. Store firewood and flammable materials at least 30 ft away from your home, garage, or deck. Never store flammable materials under your deck.
- Shrubs and trees are not recommended in this zone. Trim back overhanging branches 10ft from your roof.
INTERMEDIATE ZONE 5-30ft
- Create vegetation “islands”, to break up continuous fuels. Remove ladder fuels.*
- Get rid of leaf and needle debris from the yard. Keep grass under 8 in.
- Keep vegetation well irrigated and free from debris.
EXTENDED ZONE 30-100ft
- Create and maintain a minimum of 10 ft between the tops of trees. Remove ladder fuels.*
- Remove dead trees and shrubs.

HOME HARDENING - LANDSCAPING WITH WILDFIRE IN MIND
Under the right conditions, all plants will burn. However, there are plants you can select that are less prone to fire. When selecting fire-resistant plants, look for the following qualities: low volume of fuel, high-moisture content, and low amounts of oils and resins. Both the Sierra Nevada Alliance and the Redbud Chapter of the California Native Plant Society provide helpful resources for native, fire-resistant landscaping in Nevada County.
Flammable Plants
- Bamboo
- Cypress
- Dry Annual Grasses
- Eucalyptus
- Feather Grasses
- Fountain Grasses
- Juniper
- Manzanita
- Monterey Pines
- Oleander
- Palms
- Rosemary
- Sagebrush
- Scotch Broom
Plants that are flammable often have the following characteristics:
- contain volatile waxes, terpenes, or oils
- gummy or resinous sap
- loose, papery bark
To reduce the risk of wildfire, you can choose plants that are more fire-retardant, such as:
- Plants with high moisture content
- Ground-hugging plants
- Plants with low resin or oil content
- Succulents
- Leafy perennials
- Sedges
- Mat rushes
