Sometimes cut-hydrangeas can last for days and other times they wilt almost immediately after being added to an arrangement. When your hydrangea blooms on BOTH old and new wood (rebloomer), your pruning should be limited to stem tips that you know are dead. This will provide the largest flowers and sturdy stems. (2) After the plants are at least 5 years old, about 1/3 of the older (living) stems can be removed down to the ground each summer. If you want smaller flowers, cut them back to 1-2 ft. Make your cut just … Live wood has pushed new … Putting your hydrangeas (Hydrangea spp.) This means that even though it is tempting to cut them back in the winter, when they are only bare sticks jutting out of the ground, don't do it! to bed for winter doesn't always include a severe pruning. Immediately after cutting … The alum used in this method can usually be found in the spice section of the grocery store. Cut the hydrangea stems to the desired length. Hello, I have read several articles on pruning hydrangea. My inherited hydrangea is about 50% dead sticks (photo 1), 40% dead-looking sticks that have new stems sprouting from side of dead stick or end of dead stick (2 and 3), and 10% new stems growing straight from ground. Hydrangeas can be a little trickier to cut since they produce a sap that makes the cut … 'Annabelle' hydrangeas bloom on new wood meaning they bloom on the new seasonal growth (grows up from the base of the plant). Hydrangeas are lovely flowers that make a pleasant addition to your yard, garden, or home. When Cutting Back Hydrangeas Can Be Helpful: (1) All dead stems should be removed from hydrangeas every year. More About Pruning Different Hydrangea Types. Spring has made it obvious which wood is alive in this photo. hydrangea.tip.dieback.jpg. Right now there are green leaves coming from the base and the rest of it looks like a bunch of bare sticks. They bloom on the growth they put on the previous summer. I am still confused and afraid to do anything. Stand the stems of the hydrangeas in the hot water for 30 seconds. Using Alum Spice To Help Cut Hydrangeas. That’s because a reblooming hydrangea can put out flowers from the length of the stem even when the terminal … If you cut any old wood hydrangeas now, you will cut off the buds. This will revitalize the plant. If you’re growing hydrangeas, you may occasionally need to cut blooms either for an arrangement or to keep your plant looking great. Immediately put into room temperature water and then arrange. There are two techniques so you might want to try them both: (1) The Hot Water Method: When cutting hydrangeas, take water to the garden in a container. These are the hydrangeas that produce the large, round clusters of blue, pink, white or red flowers during Summer. Panicle hydrangeas (H. paniculata and cvs., Z 4–8); Smooth hydrangeas (H. arborescens and cvs., Z 4–9); Cut back these shrubs in late winter before new growth begins. If you prune your blue hydrangeas down in the fall or spring you will have very few flowers. Because they need to grow and set buds the same year that they bloom, shrubs that flower on new wood generally start blossoming later than … Bigleaf Hydrangeas (Hydrangea macrophylla)Even though I’m located in Zone 5, my ‘Endless Summer’ mophead hydrangea—which usually has huge blue blossoms all summer long—was killed to the ground.Luckily, it has the wonderful ability to bloom on both old and new wood, so … I know this shrub does not set buds on old wood like a regular hydrangea. Therefore, cut them down to the ground in early spring. The canes were cut to about three feet tall, and as you can see the shrub has grown back to six feet tall and wide by the following July.