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Top Questions About Japanese Maple Trees

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Questions About Japanese Maple Trees

  • Answered by
    Nikki on
    June 1, 2011
    Certified Expert
    A.

    Did you provide mulch or other type of insulation to protect the tree during winter? If not, this could have resulted in the delay you are seeing. The tiny buds may have suffered from some cold damage. As long as the tree is still alive, as you say, then it will eventually leaf out. In the meantime, water deeply twice a week or more, especially when the temps begin rising, as container-grown trees require more watering. You could also give it a dose of fertilizer to help promote growth.

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  • Answered by
    Heather on
    June 20, 2011
    Certified Expert
    A.

    This is a response to the colder temps in the spring. It breaks down the chlorophyll in the leaves in the spring which lets the red coloring show through and as the weather warms up the chlorophyll stabilizes and becomes the dominate (green) color.

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  • Answered by
    Nikki on
    June 17, 2011
    Certified Expert
    A.

    There are many diseases and pests that could affect the tree in this way. To try to avoid having to over prune, I would treat the tree weekly for a month with neem oil. It will address many of the common causes of this kind of damage (pests, fungus or mites) and I would also make sure the tree is getting enough water with good drainage.

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  • Answered by
    Nikki on
    June 25, 2011
    Certified Expert
    A.

    Yes, you can. This article should help:
    https://www.gardeningknowhow.com/ornamental/trees/japanese-maple/japanese-maple-grafting.htm

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  • Answered by
    Heather on
    July 13, 2011
    Certified Expert
    A.

    There are two things that it may be.

    The first is that the tree has borers and the sap is leaking from the borer damage. This article will help you with that:
    https://extension.colostate.edu/pubs/insect/05530.html

    The other is that the tree has Japanese Maple Scale. The sap would actually not be sap, but honeydew secreted from the scale bugs. The lumpy white appearance is the scale itself, which is a bug that covers itself in a protective white sheath. Here is more information on that:
    http://extension.umd.edu/sites/default/files/_docs/articles/EBR-18%20Japanese%20Maple%20Scale.pdf

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  • Answered by
    Nikki on
    July 16, 2011
    Certified Expert
    A.

    Yes, you can replace that soil, but be careful. I wouldn't get too close to the trunk and I wouldn't use a shovel until I could see where and how the roots are spread.

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  • Answered by
    Susan75023 on
    July 16, 2011
    A.

    I highly recommend you find a way to enjoy the tree, as is. Removing an inch or two of soil will not help in growing other plants because their roots will go much deeper than that. Plus disturbing a young tree's roots is asking for trouble.

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  • Answered by
    Cathy on
    July 28, 2011
    A.

    I checked with one our local Master Gardeners who is fair more experienced in working with this plant. He suggested keep trying, this is very difficult to grow from seed, but he did mention the fresher the seed the better. I did find this website on growing ACER PALMATUM that you might find of help.

    http://www.greenculturesg.com/articles/july05/gcs020705b.htm

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