Answer: To dry hydrangeas successfully, harvest the flower clusters after they have started to stiffen and lose color. Cut them on a dry, sunny day, leaving ample stems. Strip the foliage from the stalks. Hang individual clusters upside-down in the dark, well-ventilated area. Drying requires two to three weeks.
The color will fade on your flowers when they are dry. I've seen them sprayed with gold paint and they look very attractive.
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