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Coral bark maple8/24/2023 ![]() To avoid this, leave a few inches of clearance between the trunk and any adjacent mulch.įrost damage can show up in coral bark maple trees as browned, blackened, or shriveled foliage, which isn’t an aesthetic look at all. ![]() Not too near the trunk, though – this can suffocate and waterlog the roots. The former should be cut down as low to the ground as you can, while the latter should be pulled whenever you happen to see them.Ī couple inches of mulch spread near the trunk will help with weed suppression, moisture retention, and regulating the temperature of the soil. Suckers may pop out of the soil near the trunk periodically, and seedlings may sprout in places where you don’t want them to. Climate and Exposure NeedsĪs stated earlier, these trees need to be cultivated in USDA Hardiness Zones 5 to 8 for optimal growth. With these pointers, you’ll be able to get it right the first time. It would be a shame for the potential of this beautiful tree to go to waste due to improper cultivation. You’ll also want to keep the soil evenly moist for a few years after installation until the transplant becomes established, at which point you can reduce supplemental irrigation. Staking young transplants during the first year or two after planting can help to protect them against harsh winds. If you select a large transplant to begin with, you may want to recruit some help with planting or consider hiring a professional. It’s a matter of purchasing a transplant, digging a hole that’s slightly larger than the size of the root system, lowering the plant in, backfilling with the dug-out soil, and then deeply watering it in. This is definitely the simpler of the two options. At that point they’re ready for transplanting into their permanent location.įor a more in-depth breakdown of the process, you’ll find instructions in the propagation section of our guide to growing Japanese maples. This method is as simple as taking softwood cuttings with a sterilized blade, applying a rooting hormone to the ends of their defoliated lower halves, and rooting them in an appropriate growing medium.įrom there, you’ll harden them off outdoors in spring until they’re conditioned to survive outside. These methods will also give you results much more quickly than starting plants from seed.īut if you’d like to give it a try and you’re eager to see what type of results you get, you can learn all about growing Japanese maples from seed in our guide. I’m hesitant to recommend growing from seed because of any potential genetic variance that could leave you with a less-than-glorious tree that does not share the same qualities as the parent. It’s best to propagate this variety by rooting cuttings or via transplanting, which we’ll cover here. But there are other cultivars to choose from as well, which we’ll cover below in the Cultivars to Select section. In the United States, this cultivar has become a beloved variety. It was under this moniker that it received the Award of Garden Merit in 1993 from the UK’s Royal Horticultural Society – a prestigious award from a distinguished organization. Some time after, it was renamed ‘Sango-Kaku.’ Northern Ireland’s Daisy Hill Nurseries introduced the popular ‘Sankaki’ cultivar for commercial sale in the UK in the 1920s. ![]() As a whole, Japanese maples have been cultivated in Japan for centuries. palmatum, coral barks are best grown in USDA Hardiness Zones 5 to 8, and their heritage traces back to a region encompassing China, Japan, and Korea. This is uncommon for a deciduous tree, which makes a coral bark a fantastic ornamental addition to the garden in all seasons. Sometimes color fades in a gradient, eventually resulting in a brown to gray hue, while in other specimens the color remains just as prominent as trees age.Īdd to that the stunning foliage – light green in spring, changing to a darker shade of green in summer with shades of red, orange, and/or yellow appearing in fall – and you’ve got a plant with year-round visual interest. The color of the trunk and older branches varies, depending on the cultivar and particular specimen. These forms display the coral colors of the young branches prominently for all to see – it’s the ultimate ornamental alley-oop!ĭuring their first and second years of growth, the branches are a rich coral pink color, which stands out starkly in the dreary winter landscape. The growing habit of ‘Sango Kaku’ is upright and vase-shaped, for example, while other cultivars with this feature may have a broad or rounded habit.
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