My garden is in full bloom with the lovliest hydrangeas right now. I have discoved a wonderful method of making them last without wilting. There is a sticky substance when cut that clogs the stem preventing water from reaching the blooms, causing them to quickly wilt. To prevent this , try this technique:
1. When cutting hydrangeas, take water to the garden in a container.
2. Immediately after cutting each bloom, drop the stem in the water.
3. Indoors, boil water and pour it into any container.
4. Cut the hydrangea stems to the desired length.
5. Stand the stems of the hydrangeas in the hot water for 30 seconds.
6. Immediately put into room temperature water and then arrange.
This process will revive hydrangeas that have wilted after a few hours or days as well.