I am designing a garden for some family in the Clark NJ area and I am having a hard time trying to find some narrow growing evergreen trees (10-15') to suggest to my Bro-in-law. I am located in Kentucky, so my commonly-available list may not be the same in your area.

Where does one go in this neck of the woods for evergreen trees like Picea 'Hoopsii' or other smaller diameter evergreens? I couldn't figure out from my Googling if the suppliers listed carried trees.

thanks!