The quality of any woven basket depends heavily on the preparation of the raw material. In Polish wickerwork, willow is the dominant material — but not all willow rods are suitable for weaving, and the same species can produce very different results depending on when it was cut, how it was dried, and how it was prepared before use.
Willow species used in Polish basketry
Several species of willow are used in basketry, but two dominate Polish production:
Salix viminalis — common osier (wiklina)
Salix viminalis is the most widely cultivated basketry willow in Poland. It produces long, straight shoots with minimal branching — ideal for weaving. The species tolerates wet soils and is commonly planted along riverbanks and on flood-prone lowland plots. Annual coppicing keeps the plants producing young shoots of uniform length.
Polish growers in the Subcarpathian region and the San river valley have cultivated S. viminalis commercially since the late 19th century. The shoots grow to between one and three metres in a single season, depending on soil conditions and growing year.
Salix triandra — almond-leaved willow
Salix triandra produces finer rods than S. viminalis and is used for more delicate work. Its bark strips more easily, making it the preferred species for producing buff willow. It is less commonly grown in Poland than in western Europe, but it appears in the collections of some specialist growers.
Forms of prepared willow
Willow for basketry is sold and used in three main forms, each requiring different preparation and suited to different types of work:
Brown willow
Brown willow is simply dried in the bark after cutting. It is the least processed form and retains the natural colour of the bark. Before weaving, brown willow must be soaked in water — typically for several days — to restore flexibility. Rods that are too thick may require longer soaking or rolling underfoot to soften the fibres.
Brown willow produces a rustic finish. It is widely used for agricultural baskets, garden furniture, and utilitarian containers. The bark provides some additional protection against moisture damage.
Buff willow
Buff willow is produced by boiling the rods in their bark for several hours, then stripping the bark while the wood is still warm. Boiling causes tannins in the bark to stain the wood a warm tan or honey colour. The stripped rods dry with this colour locked in.
Buff willow requires only a brief soaking — typically one to two hours — before weaving. Its uniform colour and smooth surface make it the standard material for most commercial Polish basketry, including export products.
White willow
White willow is produced from green (freshly cut) rods that are peeled immediately while still sappy. The result is a pale, almost white rod with a clean surface. White willow must be woven immediately after peeling, before it dries and stiffens, which makes it a more demanding material to work with.
The term "white willow" in this context refers to the processing method, not the species Salix alba — though some Salix alba shoots may be used in this way.
The distinction between brown, buff, and white willow is a product of processing, not species. A grower can produce all three forms from the same plantation, simply by varying when and how the rods are treated after cutting.
Grading willow rods
Commercial willow is graded by the diameter of the butt (the thick end) and sorted into bundles of roughly uniform length. Standard grades vary by supplier, but the general categories in Polish trade follow a similar pattern to those used across Europe:
- Fine/thin rods — used for decorative work and the weavers in fine baskets. Butt diameter typically under 6 mm.
- Medium rods — used for general weaving. Butt diameter in the range of 6–10 mm.
- Thick rods (staves) — used for stakes, handles, and structural elements. Butt diameter above 10 mm.
Rod length is equally important. A standard bundle contains rods sorted by length, typically in increments of 30 cm. Polish wickerwork for domestic use tends to use shorter rods, while export furniture production requires longer stakes for structural integrity.
Alternative materials
Beyond willow, Polish basket-makers use several other materials, particularly in regional or specialised applications:
Rush (sitowie)
Common rush (Juncus effusus) and bulrush (Typha latifolia) are used for coiling and plaiting, particularly in the lake regions of Masuria and the Vistula delta. Rush baskets and mats are associated with a distinct folk aesthetic and are less durable than willow objects but lighter and more flexible.
Rye straw (słoma żytnia)
Rye straw coiling is a traditional technique for making grain containers, bee skeps, and decorative objects. The straw is gathered in bundles and bound with split rush or willow. Straw coiling is now practised mainly in a craft or educational context in Poland.
Reed (trzcina pospolita)
Common reed (Phragmites australis) is used for thatching and for woven mats and screens. Its structural stiffness makes it less suitable for three-dimensional basketry but well-adapted to flat constructions.
Storage and care of raw materials
Dry willow can be stored indefinitely if kept in a dry, well-ventilated space away from direct sunlight. Once soaked, rods must be used within a day or two and should not be allowed to become mouldy. Buff willow is more tolerant of variable humidity than brown willow.
Straw must be stored dry to prevent mould. Rush is best stored in loose bundles that allow air circulation.
Sourcing in Poland
Willow is commercially produced and sold by growers in the Subcarpathian, Mazovian, and Lublin regions. Regional craft cooperatives and individual growers sell direct to basket-makers. The Rudnik nad Sanem area remains associated with commercial willow production and export, with growers supplying both domestic craft producers and foreign buyers.
For more on the botany and cultivation of basketry willows, the Wikipedia entry on Salix viminalis provides a useful starting point with further references.