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Japanese maple tree trunk split

Can anyone please give me some idea as to why my Acer Palmatum tree trunk all of a sudden has split like this? I've had the tree for a good 10+ years and went to check on it yesterday and noticed the trunk has a fairly deep split in it. First time I've seen this.

The tree is in a wooden container and has been outside in the harsh winter, not sure if that could have something to do with it? I'm concerned it's damaged beyond repair.... Anyone else have experience with this or know what could have damaged it? And is it likely to survive?


  • pansyfacepansyface Posts: 22,315

    Apophthegm -  a big word for a small thought.
    If you live in Derbyshire, as I do.
  • The user and all related content has been deleted.
  • Blue OnionBlue Onion Posts: 2,968
    Maybe a frost crack?  Is it the side that get's first morning light?
    Utah, USA.
  • kasjkkasjk Posts: 137
    Blue Onion, the morning sun is actually on the opposite side of the trunk.
  • kasjkkasjk Posts: 137
    Just wanted to know if anyone can help with another issue I seem to be having with my Acer tree... Tiny little buds have formed as normal but they've never materialised into leaves and now they seem dried up and not likely to do anything, usually by now there would be leaves showing. I'm assuming it's because we had a very long winter, but what should I do to help it recover. I've scraped the trunk and it's green so it's clearly not dead. Not sure if it'll recover on it's own accord or if I should do something to aid it?
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