The Urban Farm Podcast with Greg Peterson · Episode 1012 · October 21, 2026 · 34 min

1012: Grow Little for Big Impact: Rachel Opio of Little Lighthouse Farm

On this replay of the Rosie on the House radio show Host Rome and Farmer Greg welcome Rachel Opio, founder of Little Lighthouse Farm, a certified organic urban farm in central Phoenix, Arizona, to explore how growing food in small spaces can strengthen communities and reconnect people with the land. Inspired by her late mother, Lane Bales, Rachel transformed a family garden into a productive quarter-acre farm focused on soil health, biodiversity, fresh local food, and community education. She shares practical approaches to regenerative agriculture, companion planting, seed saving, and growing food in the Sonoran Desert. Rachel also explains how small urban farms can improve access to fresh produce, preserve growing knowledge, and contribute to a stronger local food system. Her advice for beginners is simple: start with one plant, grow something you love to eat, and let your garden grow from there. Key Topics & Entities Rachel Opio — Founder and farmer at Little Lighthouse Farm in central Phoenix. Little Lighthouse Farm — Certified organic urban farm focused on nutrient-dense food, community access, and education. Farmer Greg Peterson — Urban farming educator, founder of UrbanFarm.org, and host of the Urban Farm Podcast. Urban agriculture — Growing food in residential yards, containers, and small urban spaces. Regenerative agriculture — Building soil health, increasing biodiversity, and supporting a living ecosystem. Certified organic farming — Annual inspections, detailed recordkeeping, traceability, and certification requirements. Local food systems — Connecting growers and consumers through direct sales, farm stands, restaurants, and local distributors. Soil health — Balancing nutrients, organic matter, airspace, water, and living organisms. Companion planting — Combining compatible plants, including tomatoes, basil, and marigolds, to support a diverse garden. No-till gardening — Protecting soil structure and using chickens to help cultivate garden areas. Seed saving and climate adaptation — Saving seeds suited to Phoenix's Sonoran Desert conditions. Food access and community inclusion — Accepting SNAP/EBT, WIC, and senior farmers market nutrition benefits. Pollinator stewardship — Maintaining bees, perennial flowering plants, and habitat for beneficial wildlife. Beginner gardening — Starting small with a container, herb, or favorite edible plant. Key Questions Answered How did Rachel Opio become an urban farmer? Rachel originally worked in technology, although farming was something she had always wanted to do. After her mother passed away, Rachel returned to the family garden to clear the weeds and found that the space could feed her household and eventually her neighbors. That realization inspired her to turn her quarter-acre property into Little Lighthouse Farm. Why did Rachel name her farm Little Lighthouse Farm? Her mother loved lighthouses and spent decades helping children learn to read. Rachel saw her mother as a guiding light in the community, making the name a tribute to her mother's life and a reflection of the farm's mission: guiding people back to the land. Why does Rachel prioritize locally grown organic food? Rachel emphasizes freshness, nutrient density, and accessibility. Food harvested close to the time it is eaten spends less time in transportation and storage, while local production helps consumers connect with the people growing their food. What does regenerative agriculture look like on a small urban farm? Rachel focuses on soil health, regular soil testing, companion planting, biodiversity, and avoiding tillage. Her chickens help cultivate designated garden areas, while bees and perennial flowering plants support pollination and habitat. How does Little Lighthouse Farm make fresh food more accessible? Rachel sells directly to customers through online orders and a farm stand, and supplies restaurants, hospital systems, and grocery stores through a local distributor. She also accepts SNAP/EBT, WIC, and senior farmers market nutrition benefits. Why is seed saving especially important in the Sonoran Desert? Seeds suited to other climates may struggle in Phoenix's heat and growing conditions. Saving seeds from successful plants helps Rachel maintain varieties adapted to her local environment and reduces dependence on purchasing new seeds. What should a first-time gardener grow? Rachel recommends starting with one plant in a manageable space, such as a container or cup. Choose something you enjoy eating. Herbs are particularly useful because they are relatively easy to grow and can be expensive to purchase. How can small urban farms strengthen local food systems? They bring food production closer to consumers, respond to neighborhood needs, provide educational opportunities, preserve seed and growing knowledge, and create habitat. They complement larger food systems rather than attempting to replace them. How can a gardener recognize healthy soil? Rachel describes healthy soil as dark, earthy-smelling, light, and fluffy. She also suggests simple hands-on observations, including moistening soil and checking whether it can be shaped into a snake. Greg highlights five components of healthy soil: dirt, airspace, water, organic matter, and living organisms. What does Rachel hope to see in the future? She hopes to increase biodiversity, improve the farm's cooling microclimate, see more neighbors growing food, and inspire community garden clubs and informal neighborhood learning networks. Episode Highlights Rachel's journey from a career in technology to founding a certified organic urban farm, inspired by grief and her mother's legacy. How a quarter-acre Phoenix property can grow food for a family, neighbors, and paying customers. Why local food, fresh harvesting, and organic growing practices matter to Rachel. A tour of Little Lighthouse Farm, including desert-adapted plants, raised beds, chickens, fruit trees, containers, and a beehive. How Rachel uses companion planting,