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Growing Fruit Trees in Alaska | Touring O’Brien Garden & Trees Experimental Farm | Frontier Family Alaska Welcome back to Frontier Family Alaska! In today’s video, we take you on a rare behind-the-scenes tour of the O’Brien Garden and Trees Farm — an extraordinary experimental farm that has been pioneering ways to grow fruit trees in Alaska’s sub-zero climate for over 55 years. This is not just any farm. It’s a living laboratory that has tested countless fruit tree varieties under some of the harshest growing conditions on earth. With the help of high tunnels (also known as high towers), O’Brien Garden and Trees has pushed the boundaries of what’s possible in northern agriculture. They’ve celebrated major successes, endured significant failures, and documented every step along the way so that farmers, homesteaders, and gardeners can benefit from decades of trial and error. The Challenge of Growing Fruit Trees in Alaska Alaska is known for its long, dark winters, short growing seasons, and brutally cold temperatures. Sub-zero temperatures can kill delicate roots, damage trunks, and stunt growth before fruit can ripen. For decades, most people assumed growing fruit trees — apples, plums, cherries, pears, or anything beyond native berries — simply wasn’t possible in Alaska. But pioneers like those at O’Brien Garden and Trees refused to accept those limitations. High Tunnels: The Secret Weapon One of the most powerful tools in this farm’s success is the use of high tunnels. High tunnels are large, semi-permanent greenhouse structures made from steel frames covered with heavy greenhouse plastic. Unlike traditional greenhouses, high tunnels rely on passive solar heating rather than artificial systems, making them more energy-efficient and affordable for long-term farming. Here’s how they make the difference in Alaska: • Season Extension: High tunnels capture solar energy, raising soil and air temperatures inside by several degrees. This allows fruit trees to begin budding earlier in the spring and continue ripening later into the fall, significantly extending Alaska’s short growing season. • Cold Protection: During sudden cold snaps or early frosts, high tunnels provide a buffer, protecting delicate blossoms and young fruit from freezing. • Wind & Snow Shield: Harsh Alaskan winds and heavy snow loads can damage or kill trees. High tunnels act as protective barriers, ensuring trees grow in a more stable environment. • Controlled Experimentation: By growing different varieties side by side within high tunnels, O’Brien Garden and Trees has been able to test which fruit trees adapt best to Alaska’s environment. The result? Fruit trees that not only survive, but thrive, even when outside temperatures plummet far below zero. Successes and Failures: What Grows in Alaska O’Brien Garden and Trees has tested many fruit tree species over the last 55 years. Some of the most notable successes include: • Apple Trees: Certain cold-hardy apple varieties, such as Haralson and Honeycrisp, have performed exceptionally well in high tunnels. These apples are crisp, flavorful, and highly marketable. • Plums & Cherries: With the added warmth of high tunnels, plums and cherries have produced fruit in ways previously thought impossible in Alaska. While not every variety thrives, the successful ones offer proof that stone fruit can be part of an Alaskan orchard. • Pears: A handful of pear varieties have survived under high tunnel protection, though they remain more challenging due to their delicate blossoms. Lessons for the Homesteader For us on the Frontier Family Alaska homestead, the lessons from this farm are incredibly meaningful. We’ve been exploring ways to grow our own food year-round — from tower gardens to cold-frame gardening — and seeing how O’Brien Garden and Trees has overcome obstacles gives us practical hope. Some takeaways for the homesteading community include: • High tunnels are worth the investment, even on a small scale. • Cold-hardy varieties paired with protection can thrive in sub-zero climates. • Long-term documentation of successes and failures helps everyone — share your results! • Community collaboration (neighbors, farms, researchers) makes innovation possible. 📌 Final Thoughts The O’Brien Garden and Trees Farm is living proof that with dedication, innovation, and the right tools, it is possible to grow fruit trees in one of the coldest regions of the world. Their 55-year experiment with high tunnels has turned Alaska into fertile ground for fruit once thought impossible to grow here. For us, touring this farm was more than educational — it was inspiring. It reminds us that homesteading is not about what can’t be done, but about finding ways to make the impossible possible.