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How to harvest hemp
Begin harvesting the fibers as the seeds start to develop.
Look for seeds starting to form on your plant in groupings near the leaves. Waiting too long into the growing season makes the fibers too coarse and male fibers die soon after the plants pollinate.
If you want stronger fibers, you can collect the coarse fibers from mature stalks. Hemp fibers and seeds mature at different times and are challenging to harvest at the same time.