My Cedar hedge was planted mid-summer and now the leaves are turning brown. I saw on your website that this may be normal in October. Is is possible that we planted the trees too deeply? I saw on the website that tree trunks need to be exposed and not covered.
New trees always require lots of water. Cedar trees are heavy drinkers. I recommend watering them weekly or even more often until the frost. I would remove any earth or mulch covering the base of the trees so they can breathe. Please give us a call in the spring and let us know whether your trees survived.