Answer: Broomcorn (Sorghum bicolor var. technicum) is an ornamental sorghum. The seed heads should be harvested before the seed matures. Left on the stalk too long, the fibers become brittle.
Cut the seed heads of just below where the many individual brushy offshoots emerge. After cutting the seed stalks, thrash them to remove the seeds. Then place them in a well ventilated area to dry for two or three weeks. Then they are ready to make a broom!
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