Why this story matters: Amidst the constant noise of the modern world, it’s essential to pause and highlight the examples of human kindness and systemic progress that rarely receive the front-page attention they so richly deserve.
Quick summary: This story highlights recent developments related to native plants, showing how constructive action can lead to meaningful results.
On a stretch of prime agricultural land in California’s Sacramento Valley, native grasses, milkweed and wildflowers grow in tight rows under the state’s wide blue sky. Orange poppies, purple lupines and golden tidy tips create a living palette against the backdrop of the Sutter Buttes.
Heritage Growers, a native seed farm in Colusa founded by the nonprofit River Partners in 2021, is tackling one of the most fundamental — and least visible — environmental recovery challenges facing the American West: the shortage of locally adapted native seeds needed to restore damaged ecosystems at scale. With more than 200 acres in production, the farm grows what restoration scientists call “source-identified” seed — plant material whose genetic origin can be traced to the specific region where it will ultimately be replanted.
That distinction is crucial. “It’s not just any seed,” says Heritage Growers’ general manager Pat Reynolds, a restoration ecologist with more than 30 years of experience. “You want to take material that comes from a specific region, track and make sure those genetics are held forward, produce that seed and put it back into the region. That’s a real important part of it. A poppy that’s grown out in China and came from who knows what is not appropriate for habitat restoration.”
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As California accelerates its commitment to protecting biodiversity through its 30×30 initiative, the statewide goal to conserve 30 percent of lands and coastal waters by 2030, its ability to restore degraded landscapes quickly and effectively has become central to climate resilience, water security and wildlife recovery. Conservation targets cannot be met simply by drawing lines on a map. They require functioning ecosystems.
And functioning ecosystems begin with native plants.
In recent years, state and federal agencies, tribes, conservation groups and landowners have launched an unprecedented wave of large-scale restoration projects across California — from wetlands and rivers to forests and grasslands. But demand for native plant material has rapidly outpaced supply, and the California Native Plant Society has identified an “urgent and growing need” to coordinate efforts and ramp up supply and set standards of practice.
“It’s a real bottleneck in California,” Reynolds describes this situation bluntly. “There’s this mismatch between the supply and demand of native seed.” It can take several years from the moment a wild collection is made to the point when substantial amounts of amplified seed (the results of Heritage Growers’ propagation process) are ready to be drilled into a floodplain or flown onto a burned hillside. “A lot of these large-scale restoration projects haven’t factored in the timing of the seed production for their projects,” he adds.
Only then do the specialists carefully propagate the seeds under controlled conditions to maintain genetic diversity, and finally, as Reynolds explains, it’s an art to harvest the new seeds at precisely the right moment — sometimes within a 24-hour window — to ensure viability. Harvest too early and germination rates plummet. Too late, and the seed falls to the ground.
Some species require hand harvesting. Others, including some varieties of milkweed critical to pollinators like monarch butterflies, can cost more than $1,000 per pound to produce. “Milkweed actually is very expensive to amplify,” Reynolds explains. “But we need it because if there is no milkweed, there are no monarch butterflies.”
Heritage Growers was created five years ago to address this systemic shortage. As a venture of River Partners, a nonprofit that has restored tens of thousands of acres of riparian habitat throughout California, the farm operates under a fundamentally different model than commercial seed producers and the network of small nonprofit growers. “Our mission is to restore habitat for the benefit of people and the environment,” Reynolds says.
Growing its own supply allows the organization to plan ahead — cultivating native grasses, shrubs and wildflowers years in advance of when they’ll be needed in the field. “In the past, River Partners was really at the mercy of the only other real supplier in California,” Reynolds says. When a grant took three years to be awarded, he notes, “the cost of that seed has gone up substantially … and there’s not the money available anymore.” Heritage Growers changes that calculus. The farm currently produces more than 30,000 to 40,000 pounds across up to 200 different seed varieties every year. That makes it one of only three large-scale native seed growers in the state, and the only nonprofit. And yet, the output is still far from enough.
California is widely recognized as one of the world’s most important biodiversity hotspots, supporting thousands of endemic plant and animal species, more than any other US state. However, California’s Biodiversity Initiative notes that its wetlands, riparian woodlands and forests have “suffered extensive losses,” with “an estimated 80–90 percent” of its biologically diverse landscapes altered or lost in the past 150 years. Development, agriculture, invasive species, climate change and increasingly intense wildfires are among the culprits. Reestablishing native vegetation is crucial to reversing those trends.
In an era of megafires, the role of native seed extends beyond biodiversity and into public safety. Native perennial grasses and forbs can change how landscapes burn and how they recover. “Native grasses are adapted to our local conditions, our Mediterranean climates,” Reynolds explains. Deep-rooted native perennials also help retain water in soils by creating channels that allow rainfall to infiltrate more effectively, a natural form of groundwater recharge that can buffer ecosystems against drought. “They hold more water than the non-native annual grasses that make up the Golden State,” Reynolds says. “So they’re less likely to burn.”
Post-fire restoration depends on those same traits. Following major wildfires, restoration crews reseed burned areas with Heritage Growers’ locally adapted native species to stabilize soils, prevent erosion, suppress invasive weeds and jump-start ecological recovery. The natives transform the degraded terrain into more resilient habitat that is less prone to future burns.
The impact of Heritage Growers’ work is already visible in some of California’s most ambitious restoration projects. One of River Partners’ flagship efforts is the San Joaquin River National Wildlife Refuge, where over 15 years the organization has restored 2,500 acres, planted 600,000 trees, and reconnected eight miles of river floodplain to support threatened species and recharge groundwater.
The refuge has become a living laboratory for invasive species control, grass and herbaceous restoration, pollinator habitat on farm edges, and climate-smart management of riparian forests. Heritage Growers now supplies much of the seed that underpins that work, ensuring that the grasses and wildflowers beneath those young forests are genetically tied to the San Joaquin Valley and resilient to its heat, salinity and flood pulses. Lessons from the refuge are feeding directly into designs for the multi-billion-dollar San Joaquin River Restoration Program, where the right plant communities can make the difference between a functioning floodplain fishery and an eroding, weed-choked channel.
In partnership with the Yurok Tribe and others, Heritage Growers contributed some 40,000 plants and 1,500 pounds of locally adapted seed — helping ensure that the first green shoots on the exposed banks are native species, not invasive weeds. This is exactly the kind of project Reynolds had in mind when he described the “native seed gold rush”: a once-in-a-generation opportunity to heal a damaged ecosystem, constrained by the basic question of whether enough of the right seed is ready in time.
Therefore Heritage Growers is working closely with the federal and state government and their agencies, including the U.S. Fish and Wildlife Service, the Bureau of Land Management and others, to plan ahead for seed availability. “The National Park Service is setting themselves up for success,” Reynolds says. “Doing the right thing — growing out the seed in advance so it can then be available when the time is needed.”
Heritage Growers also distinguishes itself by how it handles knowledge. Many of the technical details of native seed production — when to irrigate which species, how to harvest a tricky forb, how to keep genetics distinct — have historically been guarded as trade secrets. Because Heritage Growers is a nonprofit with a mission centered on ecosystem recovery, it takes a different approach. “We share the information,” he says. “We want more growers to come out. We want more of the seed to be produced. We want more of the seed out into the environment.”
That collaborative approach extends to partnerships with tribal communities, whose stewardship of California’s landscapes stretches back millennia. Heritage Growers hosts annual tours and works with tribal representatives to integrate traditional ecological knowledge into restoration planning. “They’ve been managing the lands in California a lot better than we have,” Reynolds acknowledges. “So we’re trying to learn from them as well.”
Momentum has been building over the last few years. “We’ve taken off like a rocket ship,” Reynolds says. “I think California is ahead of the world with 30×30. I’m optimistic.”
With each carefully harvested pound, each collaboration with tribes and agencies, and each acre of wildflowers, Heritage Growers is quietly making it possible for California’s 30×30 promise to take root, one seed at a time.
All scrolling images appear courtesy of Heritage Growers, with the exception of the Klamath River aerial shot, which was taken by Swiftwater Films, and the photo of yellow lupine overlooking the Klamath River, which was taken by Joshua Chenoweth, Yurok Tribe Senior Riparian Ecologist.
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