Drying & Storage of Sunflowers
For information on drying and storage of sunflowers, please refer to NDSU Extension Service's Grain Drying, Handling, & Storage page.
Also, below is a link to a PDF document from the Kansas State University Cooperative Extension Service that describes the process for drying and storing sunflowers.
Drying and Storing Sunflowers (document) File Size: 33 kb
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A four-page document by Joseph Harner that describes drying and cleaning sunflowers. Harner also includes a 9-point list of steps to successful storage.