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Evergreen tree specifications (1 of 2) #775806

Asked October 19, 2021, 1:00 PM EDT

A) What variety are these five evergreen trees in foreground of pictures [not the blue one in the background behind the fence]? B) They were transplanted one year ago and are unprotected from frequent straight-line winds at this location high on a hill. The tree shown with blue tether had uprooted, blown down during a wind storm; then, the fallen tree was replanted several weeks later. The trees totter in the wind so much that the sod covered ground visibly shifts, noticed especially on the one with a white tether crossing the path. Many dead branches at bases have been removed as shown on the two trees in the south yard close to the home. One tree is planted in the back yard next to several GV and MH posts; it has many dead branches and weed growing about half way up into the tree. Due to the huge size of transplants in a high wind area, I think all or some of these evergreens are planted too close to utilities and home. In the spaces shown where you think some of these should be removed, do you have a recommendation regarding replacement shrub? C) Are there potential trimming or other problems (in addition to high-wind location) to be aware of? More photos coming in a separate form.

Carver County Minnesota

Expert Response

In answer to your first question, I can't reliably identify your trees based on your photos, except to say they look like some kind of fir.  But they could be some kind of spruce.  It is easy to tell these two genera apart by looking at the needles, but not by distant photos of the trees.  Spruce needles are sharp and scratchy, and roundish so that they roll in your hand.  Fir needles are softer, flat and won't roll in your hand. Read here:
https://www.extension.iastate.edu/news/2005/nov/061401.htm


Please when you send photos in for identification, send sharp photos and photos of details such as needles, needle attachment, cones or flowers, and so on.

As for the last part of your question, most conifers (including fir and spruce) require very little pruning.

These trees do not look like they are in good health (which might contribute to their lack of stability). I see lots of inner-needle loss, indicative of a number of diseases.  The lower branches of these trees have been pruned away, presumably to get a mower under.  A better strategy is to leave the lower branches, mulch under the tree and don't grow grass there, letting these branches hang to the ground.  But the pruning has been done and what remains isn't especially attractive.

I would suggest you contact a certified arborist to get a professional onsite opinion.  He or she may suggest taking out the trees. Or he or she might suggest some treatment options. Look here:

https://www.treesaregood.org/findanarborist

As for windbreaks to replace these threes, here is an excellent publication with a number of suggestions:

https://extension.umn.edu/agroforestry/trees-shrubs-windbreaks

Dennis in St. Louis Park Replied October 20, 2021, 4:37 PM EDT

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