Kapok

Cotton lint is a hair growing from the seed coat and can be spun. Kapok floss lines the pod wall and is not attached to the seed in the same way, and its fibres are too short and too smooth to hold together in a yarn. Everything about how kapok is harvested, cleaned and sold follows from that one difference.

The fibre is hollow and coated in wax, so it traps air and repels water, and it was the standard filling for life jackets and buoyancy aids before synthetic foams. It remains used for bedding, cushioning, insulation and oil absorption, all of which value lightness and water behaviour rather than strength.

Ceiba pentandra reaches thirty metres and more, and it is grown in smallholder plantations, on field boundaries and as a remnant in farmed landscapes rather than in dense orchards. Harvest means collecting fallen pods or picking from a very tall tree, which is the practical limit on production intensity.

Soil suitability should be assessed with local soil survey information and, where available, field testing.

The seeds left after ginning yield a non-edible-grade oil used for soap and lubricants and a press cake used as feed and fertiliser, so a kapok operation has a second product line that its floss trade tends to obscure.

Fertilizer rates, timing, and forms should follow local soil tests and regional guidance. AgricultureID does not publish universal fertilizer recommendations.

Synthetic fibres removed most of kapok's industrial market during the twentieth century, and production contracted sharply. Interest has since returned for applications where a natural, biodegradable, hydrophobic fibre is specified — notably oil-spill absorbents and bedding — without restoring the crop to its former scale.

The floss is extremely light and drifts, it packs poorly, and it is flammable when dry and loose, so ginning, baling and storage all need to be designed around it. Those handling costs are part of why the crop concentrated in a few producing regions.

Ceiba pentandra carries cultural and religious significance in parts of West Africa and Mesoamerica, and individual trees are protected for that reason. Where that is the case the tree persists outside any agricultural decision, which is worth knowing when reading tree counts as production capacity.

Management combines resistant varieties, rotation, monitoring, and — where justified — locally authorized control products applied according to their labels.

The species occurs naturally in tropical America and West Africa and was carried to Southeast Asia, where the commercial industry developed. Its distribution is therefore genuinely intercontinental in a way few tree crops are, and the African and Asian populations are treated differently in the literature.

Trees are grown from seed or cuttings and take years to bear, and they then produce for decades. As with other long-cycle tree crops, that timescale means planting decisions respond to prices with a lag long enough to be an industry problem in itself.