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Harvesting and retting of flax — From field to flax fiber
English
PaniKvitka

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PaniKvitka

22. April 2026UA
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Harvesting and retting of flax — From field to flax fiber

Step-by-step guide to harvesting flax (Linum usitatissimum) and preparing flax fiber for spinning. Ukraine is one of the largest flax producers in Europe, with processing traditions dating back to the Trypillia culture (4th millennium BCE). This blueprint covers determining plant maturity, pulling, binding sheaves, retting, breaking, scutching, and combing the fiber.
Intermediate
2-3 weeks

Instructions

1

Understand the flax plant

Flax (Linum usitatissimum) is an annual plant 80-120 cm tall with a thin straight stem, narrow lanceolate leaves, and blue five-petaled flowers. The fibers are located in the bast of the stem — between the outer bark and the woody core. One stem contains 20-40 bundles of fibers. Fiber flax is grown specifically for fiber, while oil flax is grown for seeds.

2

Determine flax maturity

Flax is harvested at the early yellow ripeness stage, when the lower third of the stem has turned yellow, the middle part is still greenish, and the top with seed capsules has begun to yellow. Seeds in the capsules should be light brown. Harvesting too early yields weak fiber, too late yields coarse and brittle fiber. This usually occurs 90-100 days after sowing.

3

Pull flax (do not cut)

Flax is pulled out by the roots, not cut. This preserves the maximum fiber length. Grasp a handful of stems near the ground and pull upward with a smooth motion. Work in rows, pulling stems of equal length together. Shake the soil from the roots. Pulling is physically demanding work — plan for breaks.

Tools needed:

Work GlovesWork Gloves
4

Spread out for drying

Lay out the pulled stems in a thin even layer on stubble or on mown grass with roots in one direction. Leave for 1-2 days for drying. The stems should lose excess moisture but remain flexible. Turn the layer once for even drying.

5

Tie into sheaves

Tie the partially dried stems into sheaves 15-20 cm in diameter. Bind each sheaf with flax stems themselves or with twine at two points — below the seed capsules and near the roots. Sheaves should be tight but not too compact, so water can penetrate between stems during retting.

Materials for this step:

TwineTwine1 bundle
6

Remove seed capsules

Before retting, cut off the capsules from the stem tips. The capsules contain flax seeds, which can be saved for next sowing or used as a food product. Dry the capsules, thresh and winnow the seeds. One hectare yields 400-800 kg of seed.

Tools needed:

Pruning ShearsPruning Shears
7

Prepare the retting site

Retting is the process of decomposing the pectin that bonds the fibers to the woody core of the stem. For water retting, you need a container of water (pond, pit, large barrel) or a slow-moving river. The water should be soft (without excessive lime content). Water temperature of 20-30 degrees C accelerates the process. Traditionally in Ukraine, retting pits called kopanky were used.

Materials for this step:

Clean WaterClean Water500 liters

Tools needed:

Large Retting ContainerLarge Retting Container
8

Ret the sheaves

Submerge the sheaves in water, pressing them down with stones or boards so they do not float. The water must completely cover the stems. Retting in still water takes 7-14 days depending on temperature. In warm water (25-30 degrees C) the process is faster — 5-8 days. Clostridium felsineum bacteria decompose the pectin. The water will become cloudy with an unpleasant smell — this is a normal sign of fermentation.

Materials for this step:

WeightsWeights5 pieces
9

Check retting readiness

Check the stem condition daily. Take one stem, break it in the middle, and try to separate the fibers from the woody core. If the fibers separate easily in long strips, retting is complete. If the woody core still holds firmly, continue retting. Over-retting makes the fibers weak and brittle, so daily checking is essential.
10

Rinse and dry the bundles

After soaking is complete, remove the bundles from the water and rinse them thoroughly in clean running water to remove bacterial residue and mucus. Stand the bundles vertically or spread them on grass to dry for 5-7 days. Turn them over daily. The stems must be completely dry before further processing.

Materials for this step:

Clean Rinse WaterClean Rinse Water100 liters
11

Mint stems (scutching)

Scutching — breaking of the woody core of the stem (shive) without damaging the fibers. Traditionally, a scutcher is used — a wooden device with a movable lever. The stems are placed across the scutcher and the lever is pressed several times, moving along the stem. The wood breaks into short pieces (shive), while the long fibers remain intact.

Tools needed:

Flax Brake (m'ialka)Flax Brake (m'ialka)
12

Scutch the fibers (scutching)

Scutching removes the remaining shives from the fibers. Hold a bundle of fibers by one end and strike it with a wooden scutching knife (tipalo) — a flat wooden paddle. Work from top to bottom of the bundle, turning it over. The shives fall away and the fibers become cleaner. This work is best done outdoors — it produces a lot of dust.

Tools needed:

Scutching Knife (tipalka)Scutching Knife (tipalka)
Scutching BoardScutching Board
13

Hackle the fibers (hackling)

Hackling is the final cleaning and separating of the fibers. Pull the bundle through a hackle (chesalka) — a board with rows of steel or wooden teeth. Begin with a coarse hackle (widely spaced teeth) and progress to a fine hackle (closely spaced teeth). The long parallel fibers remaining in your hand are called line (kudelya). The short fibers caught in the teeth are called tow (klochchya/paklya).

Tools needed:

Hackle Comb (coarse)Hackle Comb (coarse)
Hackle Comb (fine)Hackle Comb (fine)
14

Assess fiber quality

Quality flax fiber should be long (50-90 cm), soft, silky to the touch, with a slight luster. Color varies from light gray to golden. The fiber should be strong — a single strand is difficult to break by hand. If the fiber is brittle, coarse, or too short, the retting was either insufficient or excessive.
15

Store the fiber

Tie the cleaned line into small bundles weighing 100-200 grams. Store in a dry, well-ventilated place, protected from direct sunlight. Flax fiber is hygroscopic — it absorbs moisture from the air, so avoid damp rooms. Properly dried and stored fiber can be kept for years without loss of quality. The line is ready for spinning by hand or on a spinning wheel.

Materials for this step:

Cotton Twine (for bundling)Cotton Twine (for bundling)5 meters

Tools needed:

Storage ShelfStorage Shelf
16

Use tow

Tow (oakum) — short fibers remaining on the hackle — is also a valuable material. It is used for making coarse fabrics (burlap), ropes, caulking of log houses, insulation and stuffing. Nothing from flax is discarded — even the shive is used as mulch, fuel or filler for building blocks.

Materials

5

Tools Required

9

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