From Plant Stem to Cloth: How Bast Fibres Become Fabric

CULM · 28 Aug 2026

Bast-fibre clothing begins with the stem of a plant, not with a roll of fabric. Hemp, flax and ramie follow different processing routes, but the broad journey helps explain why natural cloth can vary so much from one mill or garment to another.

1. Growing and harvesting

The plant is grown and harvested according to the fibre system being used. Fibre quality can be influenced by variety, harvest timing and how the stems are handled after cutting.

2. Retting or fibre release

For materials such as hemp and flax, retting can help loosen the bast fibres from surrounding plant tissue. Different methods create different processing conditions. Read our retting guide.

3. Mechanical separation and cleaning

The stems are processed to remove woody material and separate the useful fibre. Further combing or alignment can prepare fibres for spinning. The exact machinery and terminology vary by fibre and system.

4. Spinning

Prepared fibres are twisted into yarn. Yarn thickness, twist and regularity strongly influence the final cloth. A fine yarn can produce a very different garment from a coarse yarn made from the same fibre.

5. Weaving or knitting

Yarn becomes fabric. Plain weave, twill, canvas, jersey and other constructions create different surfaces, weights, stretch and airflow.

6. Dyeing and finishing

The cloth may be dyed, washed, softened, calendared or otherwise finished. These processes can change colour, hand feel, shrinkage and appearance.

7. Cutting and sewing

Finally, fabric becomes a garment through pattern cutting, construction, seams, buttons, labels and pressing. Longevity depends on this stage too; good fibre cannot compensate for poor garment construction.

This is why we prefer to speak about a supply chain rather than a fibre slogan. The more of this journey that can be understood and verified, the more meaningful material transparency becomes.