- How to Prune |
- When to Prune |
- Care Tips |
- FAQs |
- Video |
- Expert Interview |
- Expert Q&A |
- Tips |
- Warnings
Limelight hydrangeas are a type of woody hydrangea that produce large, football-shaped flowers in the spring. These flowers are a beautiful addition to your yard or landscape, and luckily, they’re easy to trim. In this article, we’ll teach you everything you need to know about how to prune limelight hydrangeas, when to prune them, how to care for them, and answer common questions about them.
When to Trim Limelight Hydrangeas
Prune limelight hydrangeas in late winter or early spring to promote new growth. Remove small branches to grow larger blooms and cut off 1/3 of the plant’s growth to form a steady base. Cut off dead, diseased, or damaged branches any time of year. Cut each branch at a 45-degree angle so water runs off.
Steps
How to Prune Limelight Hydrangeas
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Sanitize your pruners before starting. When you prune a plant, the parts you cut are vulnerable to infection. Clean your pruners or loppers by wiping them down with soap and water or isopropyl alcohol. Scrub away any dirt, sap, and other debris. [1] X Research source
- Buy hand pruners or loppers at most hardware or home improvement stores.
- If you have to cut any diseased branches, give your pruners another wipe down between cuts so you don’t accidentally damage other healthy branches.
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Cut off all the old flower heads, if desired. This process is called deadheading. Your hydrangea will still have its old flowers on it from the previous year’s bloom. These flowers are dead, as you’ll probably be able to tell by their color and dried out feel. While it isn’t necessary to remove them, deadheading keeps the plant looking tidy while you wait for new blooms. [2] X Research source
- Some people like the look that the old blooms bring to their garden in winter. If you do, it’s perfectly fine to leave them on.
Tip: Cut off some flowers during the spring to make a beautiful bouquet. Cutting off flowers while they are blooming won’t hurt your plant.
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Clip branches above nodes at a 45-degree angle. Look for the nodes on the branches of your hydrangea. These will look like two small bumps next to each other. The nodes are what create new growth. Clip right above them so that they stay on your plant and make it easier for it to create new branches. Always clip at an angle so that water doesn’t pool on top of where you cut. [3] X Research source
- If the nodes are hard to see, use your fingers to feel for two pin-head sized bumps that are side by side.
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Remove dead, dying, and diseased branches. It’s important to check your limelight hydrangea for dead/dying, diseased, and damaged branches to keep it healthy and looking its best. Dead or dying branches will be more gray than other branches, and they’re typically lighter and less dense. Diseased branches may have cankers on the stems and brown or yellow spots on leaves and blooms. Cut these branches off to preserve your plant’s health. [4] X Research source
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Cut off crossing branches. Branches that cross over each other or rub closely together not only give your hydrangea a tangled, messy appearance, but they can sometimes merge together or damage each other when they rub together. Cut the branch that is crooked back to the base of the plant so that it’s more likely to grow straight when new growth appears. [5] X Research source
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Cut back any branches with holes. As you’re pruning, you may notice some branches have holes in the center. This often means there’s an insect inside, which can damage the plant if left alone. Snip these branches back to the next healthy node and examine it. If it’s still hollow, keep clipping it back until the wood is solid all the way through. [6] X Research source
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Remove smaller branches to grow bigger flowers. Your limelight hydrangea will grow bigger blooms if you cut away small, twig-like branches from its base, as this allows the plant to send all of its energy into the larger branches when it’s time to bloom . It isn’t necessary to remove small branches for the plant’s health, however. If you leave them on, your hydrangea will grow more flowers, but they will be smaller. [7] X Research source
- Try leaving the small branches in your hydrangea for a season and see how the flowers look. If they are too small, cut them out the following winter.
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Remove 1/3 of the hydrangea’s growth to keep it healthy. If your limelight hydrangea has grown too tall for your liking, clip all the branches down, cutting off no more than 1/3 of the plant’s total growth. This will leave a strong base of old wood to support new growth in the spring. Limelight hydrangeas in particular are great at coming back from huge chops, and your plant will have no problem recovering from being cut down like this. [8] X Research source
- When pruning in general, it’s usually best not to remove more than 1/3 of the plant’s growth at one time. This helps ensure the plant stays healthy.
- Don’t cut your hydrangea shorter than 18 inches (46 cm) above the ground. Any shorter, and it might be too hard for your plant to grow back.
- If necessary, use a tape measure to determine where to cut the branches.
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Cut off long branches to make the plant look uniform. Branches that are particularly long or stick out awkwardly can make the hydrangea look messy. Examine the plant from all sides to determine which branches you want to cut, then simply prune them back so they are even with the rest of the branches. [9] X Research source
- Pruning like this is entirely up to your stylistic discretion. Shape your hydrangea however you’d like. Just remember that it will grow leaves and new flowers in the spring.
Expert Q&A
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QuestionHow do I cut hydrangeas for a vase?Jeanne Walker is a Florist and the Owner of Fringe Flower Company, a floral design shop that specializes in weddings, special events, and daily deliveries. Fringe Flower Company, based in Walnut Creek, California, provides customized hand-tied and vase bouquets along with potted plants, succulent gardens, tulip french buckets, and wreaths. Jeanne also conducts floral design workshops and parties throughout the San Francisco Bay Area.Cut the hydrangea at an angle—this increases the surface area and allows the flower to take in more water at the bottom. Also, scrape the outer edges lightly, which encourages the open cells to take in water.
Video
Tips
- Limelight hydrangeas are panicle hydrangeas, named for their large, cone-shaped flowers known as panicles. [23] X Research sourceThanks
Warnings
- Hydrangeas are toxic to humans and animals, so do not ingest and wash your hands after handling. Keep pets away from your hydrangeas. [24] X Research sourceThanks
Expert Interview
Thanks for reading our article! If you’d like to learn more about gardening, check out our in-depth interview with Jovace Nelson .
References
- ↑ https://yardandgarden.extension.iastate.edu/faq/how-do-i-sanitize-my-pruners-prevent-spread-disease
- ↑ https://mgnv.org/wp-content/uploads/2021/10/Pruning-Hydrangeas.pdf
- ↑ https://extension.oregonstate.edu/gardening/flowers-shrubs-trees/general-care-hydrangeas
- ↑ https://mgnv.org/wp-content/uploads/2021/10/Pruning-Hydrangeas.pdf
- ↑ https://extension.umn.edu/planting-and-growing-guides/pruning-trees-and-shrubs
- ↑ https://extension.umn.edu/yard-and-garden-news/elusive-hydrangea-cane-borer
- ↑ https://www.southernliving.com/garden/flowers/prune-hydrangeas
- ↑ https://hgic.clemson.edu/in-the-limelight-hydrangea-paniculata/
- ↑ https://www.youtube.com/watch?v=5dwC0x01IuM&t=54
- ↑ https://mgnv.org/wp-content/uploads/2021/10/Pruning-Hydrangeas.pdf
- ↑ https://njaes.rutgers.edu/fs1152/
- ↑ https://njaes.rutgers.edu/fs1152/
- ↑ https://hgic.clemson.edu/factsheet/hydrangea/
- ↑ https://plants.ces.ncsu.edu/plants/hydrangea-paniculata-limelight/
- ↑ https://hgic.clemson.edu/in-the-limelight-hydrangea-paniculata/
- ↑ https://plants.ces.ncsu.edu/plants/hydrangea-paniculata-limelight/
- ↑ https://hgic.clemson.edu/in-the-limelight-hydrangea-paniculata/
- ↑ https://extension.oregonstate.edu/gardening/flowers-shrubs-trees/general-care-hydrangeas
- ↑ https://nwdistrict.ifas.ufl.edu/hort/2022/10/03/pruning-hydrangeas/
- ↑ https://mgnv.org/wp-content/uploads/2021/10/Pruning-Hydrangeas.pdf
- ↑ https://mgnv.org/wp-content/uploads/2021/10/Pruning-Hydrangeas.pdf
- ↑ https://mgnv.org/wp-content/uploads/2021/10/Pruning-Hydrangeas.pdf
- ↑ https://njaes.rutgers.edu/fs1152/
- ↑ https://plants.ces.ncsu.edu/plants/hydrangea/