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Tucson is a foodie town. But rather than artisan breads and local avocados drawing crowds of tourists, it’s the relationship between diverse plants and people that earned it the distinction of being the first in the United States in 2015.

The UNESCO distinction came as a result of Tucson’s long agricultural history and its wide-ranging efforts to preserve its food heritage and increase access to healthy, culturally appropriate foods for all residents. And a recent report from the University of Arizona , on the “,” delved further into how the city can use its UNESCO designation to further improve its food system.

“We didn’t get the City of Gastronomy designation because we have 40 gourmet restaurants with James Beard Award winners,” said ethnobotanist and report co-author . “We got it because we’re trying to deal with the basic food security and food justice needs that any community in America is really dealing with.”

Poverty is rampant in Tucson. By various estimates, between cannot afford to pay for basic needs. But while many people live in so-called “,” the term may be a misnomer in the arid but fertile city where flourishing plant life defies global trends involving habitat destruction to biodiversity.

Because of protective farming traditions that span the last 4,000 years, more than 2,000 edible plant varieties thrive in Tucson—from prickly pears to mesquite pods and Pima lima beans. “Where [as] most of North America lost two-thirds of pre-Columbian crop varieties, the Southwest has retained most of those,” Nabhan said. The ancestral foods that still thrive today, offered Nabhan, have survived much in part because of Native farmers like the and the .

Now a host of community gardens, organizations like seed-saving cooperatives and institutions including the regional food bank are working in their own ways to nurture the region’s rich agricultural traditions. “It’s complementary stuff. It’s not like we all get together ad hoc, but they’re bright people,” Nabhan said of the those whose efforts are at once conserving the native ecosystem while also stemming food insecurity.

The damaging effect of Western food on Native health

The correlation between the encroachment of Western diets and prevalence of food-related disease among indigenous people, like members of the Tohono O’odham Nation, is glaring—and drives many of the city’s food justice efforts.

Nabhan estimated that about 10 percent of the 2,000 edible plants that can grow in the Tucson area are a part of the dietary traditions of Native people in the area, whose diet, culture, and health have been eroded by what he calls “food imperialism.”

“In 1960, no Tohono O’odham had ever been diagnosed with adult-onset Type 2 diabetes, and now an estimated 60 percent of adults over 35 and kids as young as 5 and 6 years old have the disease,” said Tristan Reader, a researcher of Native American food sovereignty issues who spent 20 years on a Tohono O’odham reservation.

“As the food system declined, so too did many cultural practices.”

“Those are the highest rates in the world, and that’s almost entirely a result of the shift from the traditional diet to a more mainstream American diet,” Reader said.

The degradation of Native diets has been deleterious to whose traditions are rooted in agrarian foodways. “Food is really the core element of [Tohono O’odham] song, ceremony, legend,” Reader said. “All of that is really based in the food system, so as the food system declined, so too did many cultural practices.”

The mission to rebuild Native foodways drives agricultural organizations like the San Xavier Co-op Farm, where sacred Tohono O’odham practices nurture traditional crops, and the , through which Native American gardeners can access discounted indigenous seeds.

But in spite of the progress made by these and other grassroots organizations, Native voices still go unheard by the state policymakers who determine farming practices and, by extension, food policy. The Arizona Department of Agriculture governing board has yet to include a Native American, Hispanic, African American, or Asian member. Without representation, advocates say, those whose diets are most likely to be compromised by systemic inequality will continue to go without the fresh desert food once enjoyed in abundance.

Community gardens

For thousands of years, the oft-dry banks of the Santa Cruz River have provided fertile ground for growers like those at the . An extension of the local food bank, the 6-acre farm is nestled between the river and two trailer parks in a low-income neighborhood on the western edge of Tucson.

It is one of at least five community farms scattered across Tucson and an important source for otherwise out of reach organically grown, native food like tepary beans and yellow watermelons. But Las Milpitas isn’t just a place for harvest; it’s also a space for change. While vegetables sprout among pollinator plants and mesquite trees, gardeners convene for sustainability workshops or potlucks.

“We’re offering this to the Tucson communities for free to build skills around food cultivation and food growing … and to give them a sense of confidence and self-sufficiency,” said community coordinator Elena Ortiz.

Stewarding seeds for well-being

A group of Tucson librarians has also developed a system of distributing seeds—using the extensive reach of the public library—as a means to improve the health outcomes of residents who struggle with food access.

In 2012, the Pima County public library system began distributing heritage seed packets—once a luxury good for hobby gardeners—to anyone with a library card.

“The desire of our community members to reconnect with their food and its source was palpable,” founding librarian Justine Hernandez and her colleague Sharon Holzman-Cox explained in an email to Civil Eats.

“We are giving people ways to have more self-determination and solve problems.”

According to the state-of-food report, those without financial means benefit from diets rich in diverse plants. “Hunger and food insecurity are often exacerbated in communities where diets are chronically monotonous because many nutrient-dense foods are priced beyond their citizens’ reach,” the report reads.

Not that giving people access to more plants is a cure-all.

“We don’t want to give the impression that simply by making more seeds available to people that we can solve the root cause of poverty,” Nabhan said. “But … given that reducing poverty and food insecurity is such a complex and long-term project, we are giving people ways to have more self-determination and solve problems rather than just relying on Band-Aid approaches.”

Seed packet circulation in the county nearly quadrupled in the five years since librarians began offering the seeds.

Now, the Pima County seed library is one of the largest in the world, serving more than 1 million residents through an interlibrary seed loan system operating across all 26 branches.

Moving forward, one (food)way or another

Making space for local, affordable, and culturally appropriate food is not an easy undertaking, even in an UNESCO City of Gastronomy. Those working to reframe Tucson’s food system are doing so on their own terms and with varying degrees of support.

Most grassroots groups go without the kinds of resources that are available to larger institutions like the food bank or the public library. Without space for more community gardens or capital for projects like restaurants that offer meals prepared with traditional food, advocates are waging an uphill battle. But the community remains as resilient as the plants that blossom on the banks of the Santa Cruz River.

“It reminds me that innovation always begins on the margins [and] the necessity-is-the-mother-of-invention thing is absolutely true here,” said Nabhan.

This article was originally published by . It has been edited for ´óÏó´«Ã½ Magazine.