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Do I need to cut back hydrangeas? You don't need to cut back hydrangeas, but growth can add up year-after-year and begin to look tangled. This could impact the size of the blooms over time.
Prune panicle hydrangeas in late winter or early spring before new growth emerges. Pruning is not necessary but can be used to increase blooms, shape plants, or control plant size.
Because hydrangeas love moisture, they do best in an area that will maintain consistent moisture. ... You don't need to prune hydrangeas to transplant them but, if you do want to cut them back, do ...
How to Prune Hydrangeas It’s not entirely necessary to prune a hydrangea. In fact, some types bloom on old wood, so if you prune too late in the season, you may take off next year’s buds.
Hydrangea flower color changes based on the pH in soil. As the graph depicts, soil with a pH of 5.5 or lower will produce blue flowers, a pH of 6.5 or higher will produce pink hydrangeas, and soil in between 5.5 and 6.5 will have purple hydrangeas. Hydrangea flower color can change based on the pH in soil.
Panicle and smooth hydrangeas bloom on new wood, so you can prune them in early spring. It's fine to cut them back by about a third of their size to maintain their shape.
Raise your hand if you love hydrangeas. We knew we weren’t alone. These gorgeous flowering shrubs are some of the easiest and most satisfying to grow in your garden because of their long bloom time.
Keep trees, shrubs, and perennials in top shape with these tips on when you should never prune plants. Related: The 12 Best Pruning Shears of 2024 to Keep Your Garden in Check 1.