The Crop

Flax: 30,000 Years of Human Use

One of humanity's oldest cultivated plants, flax has clothed, fed, and sheltered civilizations for millennia — and its commercial potential is still expanding.

A Brief History

The World's Oldest Fiber Crop

Archaeological evidence of flax use dates back 30,000 years. Its cultivation shaped civilizations across Asia, Europe, and the Americas.

30,000 BCE
Wild flax fibers found in a Georgian cave — earliest evidence of textile-plant use.
8,000 BCE
Cultivation of flax begins in the Fertile Crescent for both fiber and seed.
3,000 BCE
Egyptian linen woven from flax wraps pharaohs and outfits armies. Flax is a strategic crop.
Medieval Europe
Flax linen is the dominant textile. Entire regional economies are built around retting, spinning, and weaving.
1800s
Cotton and synthetic fibers displace linen in mass markets. Flax retreats to specialty uses.
Today
Global interest in natural, biodegradable, and high-performance fibers is driving a flax renaissance in clothing, composites, building products, technical textiles, filters, and biomedical applications.
The Plant

Three Valuable Plant Parts

Unlike most crops where a single commodity drives value, flax monetizes every fraction of the plant.

Seed

Nutrition & Industrial Oils

  • Cold-pressed linseed oil
  • Highest concentration of peptides in Canadian field crops
  • Omega-3 nutritional supplements
  • Industrial drying oils
  • Alkyd resin feedstock
  • Flaxseed meal (livestock feed)

Long-Line Fiber

Technical & Textile Applications

  • Linen apparel and home textiles
  • Composite reinforcement (automotive, aerospace)
  • Biomedical scaffolding
  • Geotextile and filtration fabrics

Shive

Construction & Horticulture

  • Animal bedding
  • Horticultural mulch
  • Hempcrete-style construction aggregate
  • Particleboard and MDF
  • Biochar feedstock
End Uses

Six Market Categories

Textiles

Linen apparel, home furnishings, and technical fabrics valued for breathability and durability.

Composites

Fiber-reinforced polymers for automotive panels, aerospace interiors, and sporting goods, valued for weight reduction and renewable material end of life.

Biomedical

Scaffolding for tissue engineering, wound dressings, and biodegradable sutures.

Construction

Insulation, hempcrete aggregate, and shive-based panels for sustainable building.

Nutrition

Linseed oil supplements, functional foods, and omega-3 and peptide fortified products.

Horticulture

Mulch, growing medium amendments, and biodegradable erosion control products.

Growing Process

From Seed to Fiber

Fiber flax is seeded in early spring and harvested in late summer. The straw is pulled or cut, then dew-retted in the field — a natural microbial process that loosens the fiber bundles from the woody shive.

After retting, the straw is baled and processed through breaking, scutching, and hackling to separate long-line fiber, tow fiber, and shive. Each fraction is graded and prepared for its target market.

Biolin's research focuses on optimizing each stage of this process for Saskatchewan's specific climate and soil conditions.

Biolin has found that leaving tall straw standing over winter can often replace the traditional retting process, especially as a simplified and cost-effective way to produce high-quality tow fibers. These tow fibers can be used for almost all flax fiber end uses except the manufacture of the finest, lightest weights of linen fabric.

Flax variety trial sites
Global Context

A Growing Global Market

Global demand for natural, sustainable fibers is rising across every end-use sector. Europe leads consumption, with France, Belgium, and the Netherlands anchoring processing infrastructure. Canada — despite ideal growing conditions — has no established domestic higher-end flax fiber processing industry. That gap is the opportunity Biolin and the Fiberbelt initiative are positioned to fill.

Learn About the Fiberbelt

Stay Informed

Flax research updates, Fiberbelt news, and seasonal trial results.