Fire Resilient Peninsula
As stewards of 1,700 acres of open space across the Peninsula, the Palos Verdes Peninsula Land Conservancy is committed to preserving the region’s coastal beauty while fostering fire-resilient communities. Our habitat management includes removing invasive plants and restoring native vegetation. This helps create landscapes less prone to intense wildfires.
Our stewardship team, community volunteers and hired goats are the “weed warriors” who help to remove invasive “flash fuels” such as mustard, tumbleweed, and acacia. These plants are notorious for fueling fast-moving fires, while native species like lemonade berry and coastal sage scrub provide natural fire resistance and prevent soil erosion. (Read more) Since starting our habitat restoration work, we’ve cleared over 450 acres of nonnative vegetation, improving fire safety and restoring habitats for wildlife.
The Conservancy works closely with cities on the Peninsula and the LA County Fire Department to implement annual brush clearance in the Palos Verdes Nature Preserve, providing defensible space which extends up to 200 feet from structures. This process involves selective removal of vegetation to minimize fire risks while preventing soil erosion. We applaud landowners and cities for accomplishing this enormous undertaking every year.
Beyond these zones, we exceed the requirements by managing invasive vegetation throughout the Peninsula’s open spaces. This additional effort further reduces the likelihood of intense fires spreading through the landscape while benefiting the ecological health and beauty of preserved lands.
What We Do
• Invasive Species Management to remove nonnative vegetation that create “Flash Fuels” causing wildfires to burn hotter and faster.
• Local Seed Collection to harvest local seeds from the peninsula to ensure the plants are adapted specifically for preserving local biodiversity.
• Seed Propagation to clean, store and cultivate local species at the Conservancy’s Native Plant Nursery and Seed Farm.
• Planting by staff with the help of many hundreds of community volunteers each year help to create fire-resilient areas.
• Long-term Plant Management by staff and dedicated volunteers who return to weed and water, making sure the young plants are established for the future.
How Invasive Plants Worsen Wildfire Risks
Many invasive plants are highly flammable and grow densely, creating an abundance of fuel for wildfires. Fast-growing annual weeds, such as invasive grasses, mustards, and thistles, dry out quickly after completing their life cycle. When these plants displace native species, they significantly increase the amount of burnable material, intensifying fire hazards.
In contrast, many native plants retain moisture longer into the dry season and are more fire-resistant, which can slow fire spread and provide firefighters with more time to contain the flames before they escalate.
As wildfire season extends further each year, let’s stay committed to safety, resilience, and environmental stewardship. Together, we can protect our communities and preserve the open spaces we cherish. Join our volunteer programs to help cultivate fire-resilient landscapes or support weed control initiatives by sponsoring a goat.
Acacia Cyclops – Coastal Wattle
Forms dense thickets that can outcompete native vegetation. Fire can promote its spread and increase the severity of fires. It competes with native plants for water and sunlight.
Brassica Nigra – Black Mustard
Grows quickly and can outcompete native plants for resources like sunlight and water. It produces allelopathic chemicals that inhibit the growth of other plants, further impacting native ecosystems. As an annual plant, black mustard dries out quickly, creating a significant fuel load for wildfires, especially in areas like coastal sage scrub. Black mustard can grow up to 6 feet tall and has a weedy appearance.
Euphorbia Terracina – Terracina Spurge
A toxic invader, this plant causes serious problems once established by forming dense stands, excluding native plants, and causing a public health hazard. Contact with its leaves and stems can cause a poison oak-like reaction. It does not stabilize slopes or prevent erosion as well as the native plants that it displaces. It is also poor forage and inferior habitat for animals. It spreads rapidly and forms dense stands excluding all other vegetation.
Centaurea Melitensis – Tocalote
An annual invasive weed with foliage and winged stems that are grayish to green in color. Malta starthistle is highly competitive and often develops dense, impenetrable stands that displace desirable vegetation.
Nicotiana Glauca – Tree Tobacco
A spindly, many-branched shrub or small tree. It is distributed in warm temperate, arid and subtropical, dry and moist regions, commonly beside roadsides and along riverbanks. It is drought resistant, tolerant of a wide range of environmental conditions, out-competing native vegetation.
Foeniculum Vulgare – Fennel
Fennel can drastically alter the composition and structure of many plant communities, including grasslands, coastal scrub, riparian, and wetland communities. Mature plants are difficult to remove due to their deep taproots. Cutting the root before the plant sets seeds can reduce re-sprouts. Revegetation with native species is important after removal efforts to prevent reinfestation.
Salsola Tragus – Prickly Russian Thistle
A highly invasive, annual herb native to Eurasia that has become a significant weed in North America, particularly in disturbed areas like roadsides, fields, and vacant lots. The plant’s tumbleweed characteristic allows for efficient wind dispersal of seeds, making it difficult to control. When dry, Russian thistle can create a significant fire hazard, and windblown tumbleweeds can quickly spread fires.
Schinus Molle – Peruvian Peppertree
Can invade desert washes and other dry habitats. May reduce populations of native species. Can alter natural fire regimes and provide poor habitat for native wildlife.
Schinus Terebinthifolius – Brazilian Peppertree
Once seeds germinate, they are fast growing and Brazilian peppertree rapidly invades disturbed habitats such as roadways, ditches, canals and abandoned lots, quickly establishing a foothold from which to radiate out into undisturbed habitats. Once established, it is resilient and difficult to eradicate.
Cortaderia Selloana – Pampas Grass
An individual pampas grass stand can produce millions of seeds annually that travel several miles, and because these grasses are very tolerant of intense sunlight, drought, and frost, they are very efficient at establishing in many habitat types. Pampas grass has leaf blades that are highly undesirable as food or shelter to birds and other wildlife, and can actually cause physical harm to those animals, including humans, because the leaves are extremely sharp.
Resource List
LA County Fire Department:
Your Personal Wildfire Action Plan: Ready, Set Go
Fire Hazard Reduction Programs
US Green Building Council Wildfire Defense Toolkit
Other Resources:
Articles:
Palos Verdes Pulse
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