The Japanese maple, or Acer palmatum, is a stunning and uniquely shaped tree that’s native to Japan, central China, and Korea. The trees were introduced in England in 1820, and since then, have been used as focal points in some gardens because of their stunning, brightly colored leaves and canopy growth pattern.
Typically, Japanese maples grow to about 15 to 20 feet tall, and their canopy reaches out about the same length. However, there are dwarf versions of these trees that are some of the best options for smaller gardens. They have bright, hand-shaped leaves that appear in the summer in a beautiful green color, but soon turn red, purple, or yellow in the fall.
They are hardy in zones 5 to 8, but they’re not fast growers. Japanese maples aren’t so slow that you won’t notice a change from year to year, but if you need something to grow up quickly to hide that electric meter, you may want to choose a different plant. Their range in size, colors, and unique shape makes them ideal choices for landscaping and a fan favorite among gardeners across the United States.
There actually is no real reason you should ever need to prune a Japanese maple for health reasons. These trees are healthy and grow in a unique way that is a part of their charm. However, when grown in landscaping, sometimes it’s necessary to prune a plant to keep it in the shape you want, protect the plant, cut off dead or diseased limbs, or protect the plants around it. For example, the broad canopy of the tree might put your sun-loving flowers in the shade for too long and inhibit their growth. Other than that, a Japanese maple doesn’t really need to be pruned to promote happy and healthy development.
When you start thinking about pruning the plants in your garden, it’s vital to their health that you do your research and find out what time of year is best for that specific plant. If you’re just going to be snipping off a few branches, then you can do that any time of year without affecting the health of the Japanese maple. However, if you plan to prune a lot of branches to change the shape or size of the tree, you’ll want to do that in the winter. Other than that, the old gardener saying, “Prune when the shears are sharp,” rings true here, too. As long as you have quality tools that are clean, you can lightly prune your tree any time of year.
The most important part of pruning your Japanese maple is what you use the cut it. To ensure the plant doesn’t get sick, only use disinfected and sharp pruning shears. A sharp tool makes a clean cut and makes it easier on you and the tree!
When you go to cut the limb or branch, you’ll want to cut close to the trunk but not flush to the bark. Not much of the cut-off branch should be left on the plant, but you should be able to see a small stump where it once was. If the limb is too thick for pruning shears, you can do this same thing with a small handsaw. But again, you’ll want to be sure they are clean, disinfected, and sharp enough to make a clean cut. A jagged cut does more harm to the tree.
If you have a lot of pruning to do, you might need to take a year or two to do it. Don’t cut off a large portion of the tree at once. This can send the plant into shock and kill it. Instead, cut a few branches one year, then wait until the next year or the year after that to cut the rest of the branches. This gives the plant plenty of time to recover from the first pruning and easily handle another pruning the following year.
So if you were nervous about pruning your prized Japanese maple or hesitant to plant one if it needed a lot of maintenance, then you can rest assured that these are generally easy to grow, low-maintenance plants. The Japanese maple rewards you with stunning color, distinct growth patterns, and the perfect centerpiece for your landscape designer. This is what makes it so easy to understand why they are used frequently across the United States.
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