Linda says. Prune away frost-damaged stems and leaves in the spring. Although it is difficult to protect Japanese maples from cold temperatures in many cases, some site selection and care techniques can shelter the tree, especially if it is a smaller specimen. Feed your Japanese maple tree once each year in the spring with a well-balanced fertilizer, such as a 10-10-10 NPK (nitrogen-phosphorus-potassium). Our Japanese maple never lost all its leaves before the winter of 2019. Once each tree is removed wrap the trunk with burlap to protect the bark from damage while transporting each to its new location. Prune your Japanese maple once every two or three years to thin out overcrowded branches. Potted tree with leaves 4. Then you can help the tree recover and also know what to say to protect it from the saws and axes of impatient, uninformed others. Protect your Japanese maple tree from late spring frosts. 3. To plant in-ground or in containers? Soil: Japanese maples are fairly adaptive, but prefer moist, well-drained, slightly acidic soils that contain organic matter. Mulching and careful irrigation over the next several years to keep the root zone uniformly moist (not wet) may help pull damaged plants … A freeze-damaged Japanese maple will generally produce excessive, weak and often upright new shoots giving the plant an unattractive, crowded appearance. In about a month dead foliage will be gone and you should see new growth. Shortly after freeze damage becomes apparent, pruning to remove dead portions of the tree is warranted, as long as no more cold events are anticipated. Avoid watering your Japanese maple tree in the winter because this can damage its root system. Typically, those are only resorted to on commercial plants and bushes like roses and wheat. 2. The most popular among them are Emperor, Butterfly, Burgundy Lace, Red Pygmy, Garnet and Tamukeyama. Maples should have no problem with a second sprout when temperatures level out. Inspect your Japanese maple tree regularly for aphid infestations by looking for the insects themselves, as well as distortion of the tree’s leaves and new-growth shoots. Don’t expect much to change fast. Potted tree without leaves 2. General location 2. Many landscapes are built around a Japanese maple, so when they're damaged, even non-gardeners take note. Purdue University: Freeze Damage to Plants, Pruning a Tree That's Split at the Bottom. Protection, Protection, Protection 1. Plan the perfect garden with our interactive tool →, Blue Ridge Bamboo LLC: Planting and Care of Japanese Maples, Eastwoods Nurseries: About Japanese Maples. Treat botrytis disease by avoiding over-watering the tree, pruning away and burning any infected stems or leaves, and spraying the tree with a copper-based fungicide, such as a Bordeaux mixture. What type of soil medium should I use? Asked May 26, 2015, 6:25 PM EDT . Many of mine got frosted just a few days ago and look really bad. If frost is anticipated, draping a sheet or blanket over the tree so that it touches the ground may help trap heat close to the tree. Wrap as breathable a material as possible around the plants — like burlap, linen, newspaper, or old bed sheets — then secure it against the wind with heavy rocks or clothespins. © Copyright 2020 Hearst Communications, Inc. But that kind of damage should be temporary. Jack Frost maple trees are crosses between Japanese maples (Acer palmatum) and Korean maples (Acer pseudosieboldianum). The following year, about 30 percent of the remaining growth is removed. Japanese maples like loose soil that drains well. Or leaving the sucker and the pretty Japanese maple part will eventually die off. Placing thin barked trees out in the open landscape can increase the likelihood of frost cracks and sun scald. 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