All of california is at risk for wildfires. Once there was a 'wildfire season' but now the possibility of wildfires stretches across most the year. Creating defensible space is important to improve your home's or commercial property's ability to survive a wildfire. It’s the space you make between your property's buildings and the surrounding area of landscape. This space is broken down into two zones which act as a buffers between your surroundings.
The buffer zones are essential to help prevent the spread of fire to your property. Defensible space is important to give firefighters a chance to properly defend your property and to increase their safety while doing so.
100 Feet of Defensible Space Required by Law
Back in January 2005, state law became effective that extended the defensible space clearance around homes and structures from 30 feet to 100 feet. Studies showed that proper clearance to 100 feet dramatically increases the chance of your house surviving a wildfire.
Defensible Space Zones
Two zones make up the required 100 feet of defensible space. California Department of Forestry and Fire Protection and ReadyforWildfire.org have great tips to create a “LEAN, CLEAN and GREEN ZONE” by removing all flammable vegetation within 30 feet immediately surrounding your home. Then create a “REDUCED FUEL ZONE” in the remaining 70 feet or to your property line.
Zone 1 extends 30 feet* out from buildings, structures, decks, etc.
Remove all dead plants, grass and weeds (vegetation).
Remove dead or dry leaves and pine needles from your yard, roof and rain gutters.
Trim trees regularly to keep branches a minimum of 10 feet from other trees.
Remove branches that hang over your roof and keep dead branches 10 feet away from your chimney.
Relocate wood piles into Zone 2.
Remove or prune flammable plants and shrubs near windows.
Remove vegetation and items that could catch fire from around and under decks.
Create a separation between trees, shrubs and items that could catch fire, such as patio furniture, wood piles, swing sets, etc.
Zone 2 extends 100 feet out from buildings, structures, decks, etc.
Cut or mow annual grass down to a maximum height of 4 inches.
Create horizontal spacing between shrubs and trees. (See diagram)
Create vertical spacing between grass, shrubs and trees. (See diagram)
Remove fallen leaves, needles, twigs, bark, cones, and small branches. However, they may be permitted to a depth of 3 inches.
* San Diego County requires 50 feet of clearance in Zone 1. Check with your local fire department for any additional defensible space or weed abatement ordinances.
Plant and Tree Spacing
The spacing between grass, shrubs, and trees is crucial to reduce the spread of wildfires. The spacing needed is determined by the type and size of brush and trees, as well as the slope of the land. For example, a property on a steep slope with larger vegetation requires greater spacing between trees and shrubs than a level property that has small, sparse vegetation.
Remove all tree branches at least 6 feet from the ground. Allow extra vertical space between shrubs and trees. Lack of vertical space can allow a fire to move from the ground to the brush to the tree tops like a ladder. To determine the proper vertical spacing between shrubs and the lowest branches of trees, use the formula below.
Example: A five foot shrub is growing near a tree. 3×5 = 15 feet of clearance needed between the top of the shrub and the lowest tree branch.
Horizontal spacing depends on the slope of the land and the height of the shrubs or trees. Check the chart below to determine spacing distance.
Our team at Pacific Vista Landscape Services can help your home or commercial property meet the Defensible Space requirements. Call us today for a free estimate and see what we can do for you!
Here are other helpful articles on defensible space:
Fire Resistant Plants for Southern California
Seasonal Ways to Reduce Wildifre Risk
All over sunny California you can encounter colorful bursts of Bougainvillea waving hello. Bougainvillea is a is a genus of thorny ornamental vines, bushes, and trees originally coming from South America. This striking plant is perfect for our climate and can bloom almost all year around. They are drought tolerant and actually bloom more with less water!
The blooms can vary from white, to pink, orange, red, deep red and purple. While white isn't as common for some reason, the other colors are quite common and can even come in two colored varieties, like pink and orange, and with foliage that also has two shades of green. The blooms are actually colored leaves, called bracts, and the tiny, flowering centers are the actual flowers.
Bougainvillea does well in climates 9b-11. If you want to check what zone you are in you can with the USDA Plant Hardiness Zone Map. If you are near frost zones, they don't like to be too cold, so plant near buildings for more shelter. They need at least 6 hours of sun a day to be happy plants. Bougainvilleas are wonderfully drought tolerant once established and do better with less water, resulting in more blooms, yay!
The incredible versatility of Bougainvilleas are that they can grow to 25 feet in different directions! Many people train them over fences and arbors, but they will grow over almost anything! They don't latch on like some vines, so they do need support and training to guide them where you want them to grow.
There are dwarf varieties too if you do not want to have one grow so big. They do have thorns, so be careful when pruning. They also have delicate roots so care when transplanting is key, do not disturb roots too much if possible. Transplanting once established is not recommended.
The beautiful pop of color they give can really add a nice touch to a garden, house, or commercial space. One of the easiest landscape additions to consider especially with all the color choices!
Need help with your landscaped space? Since 1988, Pacific Vista Landscape Services manages every aspect of landscaping maintenance and design. We provide innovative solutions to meet landscaping requirements and achieve water savings goals for commercial complexes, HOA's, resorts, industrial complexes, schools, and retail centers. Our team is comprised of:
Water conservation professionals
Certified landscaping technicians
Irrigation & sprinkler system managers
Certified arborists & tree trimming professionals
See what we can do for you! Contact Us!
There are some incredible advancements in technology for the garden that can make life a whole lot easier, help your garden thrive, and save water and money.
Ken Lain, The Mountain Gardener, and guru of high tech gadgets, has these suggestions for helping in the garden. If anyone knows where to start with adding tech, it's him!
8 Tech Gadgets for Your Garden by Ken Lain was originally published in Talking Glass Magazine Spring 2021 Tech Edition.
Here are the links to some the companies mentioned or shown above:
GrowIt! Garden App: https://www.growitmobile.com/
Brinno Garden Cam: https://www.brinno.com/
Spruce Irrigation: https://spruceirrigation.com/
Vegibee Pollinator: https://vegibee.com/
Garden Plan Pro: http://www.gardenplanpro.com/
Netatmo Weather Station: https://www.netatmo.com/en-us/weather
Husqvarna Automower: https://www.husqvarna.com/us/products/robotic-lawn-mowers/
Happy high tech gardening!