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The Japanese have been keeping records of when cherry trees blossom since the year 815.
(hexbear.net)
I looked for the source - I couldn't find it.
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Edit: SkingradGuard found it.
That tracks. Plants in Colorado seem to think it's mid-April right now. Last year they acted like it was two months earlier than it was.
I'm getting spring allergies in December now
My weeping cherry which usually starts blossoming in early April is already doing so right now. I'm also starting to see new leaves budding on the trees.
It seems that some bursts of cold weather are in the forecast a week from now. I'm worried it's going to kill all this new growth and the trees will be bare or brown this summer.