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." 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.