Summer Hydrangea | The Cut and Hammer Method Keep hydrangea clippings fresh for more than 4 weeks. My magical method in 3 steps. Step 1 On the first day of your fresh hydrangea clippings, cut each stem bottom at an angle, about 1-2 inches. Step 2 With a hammer, squash the bottom of the stem at your cut. I usually hit the stem 2-3 times. Step 3 Fill your vase with faucet or hose water and put your stems in the vase. These should stay fresh for a few weeks or more. Suzanne MoltJuly 19, 2022Arrange Facebook0 Twitter Tumblr 0 Likes