Tip for drying hydrangeas: Fresh, recently opened blooms, rarely dry well in the open air. Hydrangeas do best when allowed to dry on the plant before picking them. Experiment with harvesting from August through October.
How to Dry Hydrangeas. I just hang them upside down and string in my dark laundry room. After days all dry. They do need to be like the article says and be almost at end of bloom time. I WANT TO DO THIS -- WHEN I GET HYDRANGEAS!
DRYING HYDRANGEAS NATURALLY You can have beautifully dried hydrangeas that are as lovely as any you can purchase. When first starting to dry hydrangeas, I tried all the tricks I'd ever heard of. Hydrangeas colored with Ritz dye.