Fiber Plants

Fiber plants represent cannabis cultivars historically and contemporarily selected for stem structure, cellulose content, and low cannabinoid profiles rather than flower potency. Industrial hemp breeding programs, particularly in Europe and Asia, have formalized selection for long, strong bast fibers suitable for textiles, paper, and composites. These plants typically display tall, linear growth patterns with reduced branching and minimal flower development. Fiber-focused genetics often carry distinct morphological markers—thinner leaves, elevated stem diameter-to-height ratios, and delayed or suppressed flowering. Modern fiber breeding intersects with cannabinoid regulation frameworks in many jurisdictions, where THC thresholds define legal cultivation parameters. Understanding fiber plant genetics remains foundational to hemp agriculture and industrial applications.

Breeders working in the fiber category select for stem tensile strength, fiber length, and cellulose uniformity across growing seasons and regional conditions. These traits have been stabilized through multiregional breeding programs spanning decades, creating distinct cultivar groups adapted to northern European, Central Asian, and North American growing zones.