Oak Trees

Castle Green Oak trees

Zone Coeu d' Alene Idaho | landtfergie added on September 12, 2016 | Answered

Can I top and how to trim a "Castle Green Oak" tree?

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Certified GKH Gardening Expert
Answered on September 13, 2016

It looks like this is a relatively new columnar oak variety. Here is more information about these trees:


Letting the tree grow in its natural shape is the best option, and topping is to be avoided. But, here is an alternative approach recommended by a university extension agent for someone who had a similar question:


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