Ask a Question forum: Arborvitae acorns

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May 1, 2017 8:35 AM CST
I have an arborvitae not sure what kind. I can tell you it produces acorns and in winter the little bluish round berries. I just walked outside and happened to look at the tree. And it looks like it has acorns but they're like gelatinous looking and they kind of hang. They are very bizarre. I can't even really they are acorns. But from a distance they look like an acorn. The tree next to it doesn't have them but the one next to that one also has them. The first tree I mentioned is very tall about 25 feet or so. Any ideas? ; ;
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Name: Sandy B.
Ford River, Michigan UP (Zone 4b)
(Zone 4b-maybe 5a)
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May 1, 2017 8:45 AM CST
Welcome to NGA, @sagabones .

I believe what you have there is a juniper, not arborvitae, and that the growth you are seeing is a fungus.

Compare to this link from the Univ. of Minnesota Extension Service: http://blog-yard-garden-news.e...
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Name: Evan
Pioneer Valley south, MA, USA (Zone 6a)
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May 1, 2017 8:48 AM CST

Plants Admin

Yes. These look like Cedar-apple rust (or similar rust) galls. A web search will provide lots of good links. Never did serious harm to our junipers.

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