Written by Rebecca Champagne, PhD, OFRF Conservation Scientist

Meet Little Lighthouse Farm

Little Lighthouse Farm is a half-acre, certified-organic urban farm founded in 2022. Located in central Phoenix, Arizona, Rachel Opio runs the farm at the house she was born and raised in. She aims to grow everything that’s in season: produce, leafy greens like collards, dandelion greens, and swiss chard, as well as herbs, pasture-raised chickens for egg production, and a beehive for honey. She also cultivates native plants that many people don’t realize they can eat, like purslane.

Rachel sells her produce and other products at the local farmer’s market, at the farm stand right on the farm, and at the food bank. She accepts SNAP, WIC, and the Senior Nutrition Program, and she’s one of only a few places in the area to do so.

“As a black female farmer, I want to ensure my neighbors of all races, backgrounds, and ethnicities have nutrient-rich foods,” Rachel said. “I also offer garden consulting for my neighbors who want to learn how to grow their own edible landscapes.”

Little Lighthouse Farm gained USDA organic certification in February 2025. It is currently the only black-owned, certified organic urban farm in Arizona. Given the history of discrimination in federal lending programs against black farmers by the USDA, it was important to Rachel to seek certification and build trust in what she produces.

(Recommended reading → USDA issues payments to address discrimination against Black farmers; Racial Equity in Organic)

Although Little Lighthouse Farm is only half an acre in size, producing crops on even a small scale comes with its challenges. Additionally, there are unique challenges to urban farming. That’s why federal funding for organic agriculture research is so important and helps producers of all sizes.

The Importance of Organic Agriculture Research

Rachel was motivated to implement conservation practices to reduce the risks associated with irrigation costs, one of the biggest concerns on her farm. During the very hot Arizona summers, Rachel can spend up to four hours a day hand-watering her crops. Not only is this time-consuming, but because she operates an urban farm that’s reliant on city water, it can be expensive. She is also passionate about soil health and providing habitat for beneficial insects, like pollinators.

Rachel is already seeing the benefits of implementing conservation practices. She began using cover crops and set up a pollinator garden when she started the farm three years ago. Cover cropping, in particular, has helped alleviate compaction that is typical of the soil in Phoenix.

“If I hadn’t used cover crops, I would have never been able to grow anything in this soil. The first day I put a trowel in the soil after amending it for over a year, the trowel just slid in like a glove. And then I saw the worms. I was crying. Soil life is amazing.”

Investments in organic agriculture research can help farmers of all backgrounds and farms of all sizes. Urban farms face unique challenges of their own but can implement conservation practices just like larger-scale farms, which means they benefit from research findings, too. Organic research projects focused on urban agriculture have published studies that can help with conservation goals such as guides about water management and access and strategies for hydroponic strawberry production.

At Little Lighthouse Farm, soil health was restored because of the years of research on the benefits of cover cropping. Better soil health allows Rachel to grow better crops, which provide nutritious products to community members. Research funding makes this all possible and demonstrates that innovations in organic agriculture research can result in widespread adoption of beneficial practices, helping farms of all sizes and production types meet conservation goals. And the benefits of research extend beyond the farm, too. According to an analysis done by the USDA Economic Research Service (ERS), every $1 invested into agricultural research triggers a $20 economic benefit. This provides long-term benefits in addressing agronomic issues, increases farm productivity and profitability, and ultimately benefits the economies and resiliency of communities.

You can support farmers like Rachel and help strengthen the agricultural research all farmers depend on by:

  • Letting us know about the impact agricultural research has had on your farm (contact communications[at]ofrf.org!).
  • Enrolling in our free Communicating with Legislators email-based course and sharing your story with elected officials.
  • Writing a letter to the editor or an opinion piece in your local newspaper, talking about how research projects/programs have benefited your farm.