|I have some brown leaves on my arborvite nigras. Should I cut them off? Why did the leaves turn brown? They were planted last October. the leaves did not turn brown ubtil now.
|Answer from NGA
June 8, 2010
|Arborvitae nigra is one of the hardiest arborvitaes around but yours may have suffered some winter dieback because they were planted late last fall. If they weren't well established before winter weather arrived they could have been more susceptible to cold damage. I'd prune away the damaged plant parts. Your arborvitates should respond to pruning by growing replacement foliage. Water stress can also cause browning foliage. Be sure to water deeply once each week during the growing season to help your arborvitaes remain as healthy and vigorous as possible. Good luck with your plants!
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