Flax (Linum usitatissimum) is a bast plant. The term bast refers to the soft fibers produced in the plant stems as part of the phloem tissue. These fibers help keep the plant upright, as the top of the stalk is developing heavy seed pods, preventing the plant from falling over and dying prematurely. For this reason, flax fibers are naturally strong and durable. Flax matures quickly in just 100 days. It is an excellent crop to include in rotations with other cereals, grass seed, alfalfa, and oil seed crops. As part of a holistic farm plan to maximize crop production while sequestering carbon, a fiber flax crop can follow vegetables, cereals, cover cropping, or intensive rotational grazing. Fiber flax’s high seeding rate suppresses weeds, and once pulled for harvest leaves a clean field for the next crop without the use of herbicides. It needs very little water to grow, and generally, irrigation is not required for flax unless temperatures are very high after the flowers appear. Fiber flax requires a low Nitrogen input compared with cotton (approx. 30 to 50 lbs. per acre depending on N levels in the soil). Spun flax fiber, or fabric made from this fiber, is called linen, a natural fabric used for more than 5000 years, longer than cotton or wool. In comparison to cotton’s composition at 90% cellulose, flax fibers are approximately 70%, making linen a crisper and shinier fabric. Linen is also very absorbent, dries quickly, is cooler to the touch, has a better uptake of colorants and shrinks less than cotton.
Research Achieved in 2017
Dr. Andrew Hunt, Dr. Jennifer G Kling, Shannon M Welsh, Angela Wartes-Kahl, Dan Curry, Ralph Fisher, Scott Robbins
Together in 2017, our research team bred fiber flax varieties specific to our region, classed flax grown in Oregon, and established procedures for harvesting and field retting future crops. Planting flax on a large scale requires us to create a local source of fiber seed varieties first. Currently there are no fiber flax programs growing commercial quantities of seed in the United States. By establishing a seed breeding program, we can steer the results toward fiber flax best suited to organic systems in our bio-region. Consulting with Alvin Ulrich, President of Biolin Research in Saskatoon, Saskatchewan, we learned how to hand grade and class fiber flax. To assess the quality of fiber produced in Oregon, we were able to analyze historical samples as our base, in partnership with the Willamette Heritage Center. We also compared the quality, yield, and environmental aspects of conventional farming versus organic, which leads to a better understanding of how our practices impact the soil and ultimately the longevity of our planet.