About The Kenaf Plant Kenaf cannot run wild across the country like a weed, because in almost all parts of the U.S., kenaf seeds cannot mature. All art 1998 Vision Paper Kenaf... season, the kenaf plant flowers. After blooming the flower drops off, leaving a seed pod behind. In most parts of the U.S. the seeds will not mature. While there are certain varieties... of the U.S. It offers a way to make paper without cutting trees. Kenaf grows quickly, rising to heights of 12-14 feet in as little as 4 to 5 months. U.S. Department of Agriculture...