Bigleaf Hydrangea Hydrangea macrophylla â¢ Bloom on old wood; do not prune â¢ Protect in winter. And will it ever bloom again? Hereâs our advice on pruning the different types of hydrangea. Pruning Pruning group 4 Pests Aphids , capsid bug , hydrangea scale and vine weevil may be a problem Diseases May be subject to a leaf spot (see leaf damage on woody plants), grey moulds , powdery mildews and honey fungus If you have older plants that arenât blooming well, you can cut up to a third of the stems off at the base in late summer to encourage new growth. Unfortunately, after it rains, the stems and blooms fall to the ground due to the weight of the water. They had beautiful blue blossoms on one plant and pink on another. If you live in a warmer climate with hot summers, select a planting location that offers some protection from the hot midday sun. Is this the correct way to prune this? If so they won't bloom again until next year since most mopheads bloom on old wood. Custom programming and server maintenance by, https://extension.umd.edu/sites/extension.umd.edu/files/_docs/programs/h…. I have tried to use rope, individual stem supports and peony rings to support the stems but that looks awful! Terry has written articles and publications for a wide range of markets and subject matters, including Medicine & Health, Eli Financial, Dartnell Publications and Eli Journals. I also fertilize it with my leftover coffee and grounds. 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. In most cases hydrangeas will grow back quite quickly, so you may not be able to maintain the smaller size for long. As far as helping next year’s blooms, if your plant has not been blooming stop pruning it, make sure it gets at least 4 hours of sun a day, gets sufficient water throughout the season, and if frost is damaging your buds give the plant some winter protection. Your soil my be lacking key nutrients. Although the only essential work is to remove dead wood in spring, these species flower more prolifically when pruned â¦ I live in Zone 8-9. Have others that I did trim back and had blooms in profusion on those. Continue to not prune at all. Pour éviter les gelées tardives, privilégiez une plantation le long dâun mur de la maison ou sous un arbre qui le protègera des dernières gelées de lâannée. L'Hydrangea aspera Macrophylla est un grand hortensia rustique portant de grandes ombelles mauve pâle accompagnées d'un opulent feuillage velu, apportant une note exotique aux massifs d'ombre. Too much nitrogen grows a big plant with no blossoms. Terry â¦ Looking forward to learning more plants and how to keep them alive and well. Plant hydrangea macrophylla in a spot that receives full to partial sunlight and has moist, fertile soil. It is also hardy to Zone 5 and blooms on both old and new wood. When to Prune Hydrangeas. I just wait until I see what has died over the winter and cut that back to living wood to not lose those early blossoms. Submitted by Gail Connelly on August 28, 2015 - 7:52pm. Submitted by Roberta T on August 28, 2015 - 7:26am. Here is a quick and easy guide to identifying what hydrangea you have and pruning it. Prune the hydrangea to reduce its size. If they need pruning to maintain size or shape, do it in the summer, preferably before August. This shrub typically grows to 6-8 feet tall and just as wide. Along with pruning, properly watering your hydrangeas is essential to helping them bloom better. Some types should be pruned in late winter, while others should be left alone until after they bloom in the summer. I too had plants that haven't bloomed now for 2 yrs, need to make sure they get the right nutrition. A soil test will tell you what you are lacking. Submitted by Susan S. on September 5, 2015 - 8:17pm. Panicle Hydrangea Hydrangea paniculata â¢ Blooms on new wood; prune in late winter or early spring. Submitted by Mardell on July 9, 2016 - 6:08pm. Avoid pruning hydrangea macrophylla in early spring, because this type of hydrangea blooms on old wood and you may remove potential flower blossoms.