Damaged Emerald Arbovitae - Knowledgebase Question

Wolfville, NS
Avatar for richardgoul
Question by richardgoul
April 21, 2006

I bought a Monrovia Emerald Arbovitae from a local nursery last year. Unfortunately it has not done well over the winter. Large areas of the tree are brown or yellow. There are some dark green, healthy areas but they would amount to maybe 30 - 40% of the tree.

Should I give up on this tree and remove it? There are only about 3 weeks left before the warranty from the nursery expires.

Or should I try to save the tree? If so, do you have any suggestions beyond what the nursery suggested (lime, evergreen fertilizer and watering)?

This is about the 7th Monrovia Emerald Arbovitae that I have purchased. All the others are doing very well - including the one right beside the one that seems to be dying.

Thanks for your help.

Answer from NGA
April 21, 2006
Unfortunately, based on your description I am not able to tell why the browning or yellowing is happening. It might be due to a rooting problem or to a disease of some sort. It would be a good idea to have a firm diagnosis though before you replace it, especially if you want to replace it with another arborvitae. You might want to take photos of the overall plant and some closeups of the yellowing and consult with a professionally trained nurseryman to try to obtain a more specific diagnosis. Since it sounds as though the majority of the plant is affected, you might also want to consult with the nursery where you purchased it about their warranty. I'm sorry you are having trouble with it!

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