Q.When do I prune arborvitae hedge?
We have a hedgerow of 28 emerald green arborvitae and need to keep them at 6-7′ in height to stay within the by-laws of our HOA. Should I begin topping the trees now or wait until they have reached their desired height? They are all approximately 4-5′ tall now and seem to grow about 9-12″ per season. They are planted 24″ apart but are not yet touching. The photo was taken within the last week. Thanks!
Downtoearthdigs
Answered on September 10, 2015
Here is some links that will help you.
https://extension.unh.edu/resources/files/Resource000594_Rep616.pdf
https://www.gardeningknowhow.com/ornamental/trees/arborvitae/growing-arborvitae-trees.htm
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