My friend Trinette engaged in a massive project with
kudzu on her North Carolina property around 20 years ago. She harvested, processed, retted, and otherwise messed with huge amounts of the pest, and eventually had accumulated enough fiber with which to weave (weft only) a vest. The vest was sold at auction. I don't know who bought it, but the new owner must have been interested in shock value, not comfort, as it was a
very scratchy garment. Trinette kindly gave me enough kudzu fiber to weave my own small sample, which you may see here lifesize and at 25x. The warp was 20/2 cotton, natural, and the weft full-length pieces of kudzu fiber, knotted together to make them long enough to wind on a shuttle (the usable fiber in the kudzu plant comes from the stem, just as with linen).

I don't know if further processing would have made the kudzu spinnable, but in the state it came to me it was just like straw. Anyone out there have any experiences processing, spinning, and/or weaving kudzu?