When Dr. Thomas Cowan mentioned comfrey in the context of bone healing—describing how this remarkable plant could help "knit" bones back together through both internal remedies and external compresses—it sparked a curiosity that led to discovering one of agriculture's most profound untold stories. Lawrence D. Hills' comprehensive work on comfrey reveals not just an herb for healing bones, but a plant that represents perhaps the most misunderstood agricultural revolution in modern history. Here is a crop that produces more protein per acre than any other temperate plant, contains the only known plant-based source of vitamin B12, and possesses roots that mine minerals from eight feet underground—yet it remains largely unknown, victims of repeated boom-bust cycles caused by ignorance rather than any failing of the plant itself. The story Hills tells through these thirty questions and answers is one of humanitarian vision meeting biological reality, where a Quaker smallholder's dream of ending world hunger through a single remarkable plant became entangled with commercial exploitation, linguistic manipulation, and the tragedy of knowledge without wisdom.
What makes Hills' work particularly compelling is how it illuminates the disconnect between a plant's true potential and humanity's ability to work with rather than against natural systems. The same characteristics that make comfrey miraculous—its deep mining roots, permanent nature, and vigorous growth—become curses in the hands of those who don't understand its requirements. This mirrors a larger pattern in how we approach both agriculture and healing: seeking quick fixes and magic bullets rather than understanding the deeper intelligence at work. Just as Cowan teaches that bones are "crystallized music" requiring proper nutrition, energetic patterns, and time to heal, comfrey demands respect for its trilogy of needs: "keep it clean, keep it cut, keep it fed." The plant's ability to transform waste into wealth, poison into protein, and mineral-depleted soil into abundance offers lessons that extend far beyond agriculture. In an era of converging crises—protein shortages, soil depletion, and unsustainable industrial farming—comfrey stands as both a practical solution and a philosophical challenge: can we learn to partner with nature's intelligence rather than trying to dominate it? Hills' meticulous documentation suggests the answer lies not in the plant itself, but in our willingness to observe, understand, and work within natural laws rather than against them.
With thanks to Lawrence Hills.
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