At first glance, Eucalyptus trees might seem like a harmless—and even attractive—feature of California’s landscape. Towering and fragrant, they’re a common sight along highways and hiking trails. But beneath their charm lies a serious problem: these Australian natives are wreaking havoc on local ecosystems.
Brought to California in the 19th century for timber, Eucalyptus trees quickly spread across the state. However, these fast-growing imports are poorly suited to the local environment. They outcompete native plants for sunlight, water, and nutrients, making it nearly impossible for native species of trees, shrubs, weeds, and succulents to thrive.
This disruption cascades through the ecosystem, leaving local wildlife without the food and shelter they need to survive.
And the problems don’t stop there. Eucalyptus trees are highly flammable due to their oil-rich wood and leaves, turning them into natural fire hazards. In a state plagued by increasingly severe wildfires, their presence poses a serious threat to public safety and the environment.
Nestled between Carlsbad and Encinitas, Batiquitos Lagoon is a vital wetland habitat and Marine Protected Area that supports a wide variety of birds, fish, and other wildlife. But like many natural areas in California, it has suffered from the spread of invasive species, including Eucalyptus trees.
Recognizing the need to restore balance, WILDCOAST’s wetlands team is taking action. This year, we began clearing an aging Eucalyptus grove at the north edge of the lagoon. It was no small task, and there is much more work to do, but removing these invasive trees was an essential first step toward bringing the area back to its natural state.
Our ecologists partnered with a local tree-cutting service owned and operated by a former fire chief and collaborated with Nature Collective and the Batiquitos Lagoon Foundation to ensure the safe and responsible removal of these trees.
Luckily, the story doesn’t end with removal. In place of the Eucalyptus grove, we’re planting native species like Coast Live Oaks, Sycamores, and Cottonwoods. These trees are well adapted to California’s climate and provide a wealth of benefits:
As these young plants take root and grow, they’ll transform the landscape, supporting a healthier, more diverse, and resilient ecosystem at Batiquitos Lagoon.
Our work at Batiquitos Lagoon is far from over. In 2025, this restoration project will expand, with more native trees and shrubs planted and continued efforts to monitor and maintain the habitat.
This is just one of many initiatives WILDCOAST is leading to protect, restore, and rewild California’s natural spaces. By addressing invasive species like Eucalyptus trees and championing native restoration, we’re building a future where both people and wildlife can thrive!
Every tree planted, every grove restored, and every species protected is a step toward a healthier planet. You can support projects like this one by donating to WILDCOAST or volunteering with us.
Together, we can turn the tide for ecosystems like Batiquitos Lagoon and beyond.
Stay tuned as we share updates on this project in the coming year. Here’s to a greener, more balanced future! 🌳