What type of Arborvitaes do you have in your yard, the "Emerald Green"
ones?? Yeah, I have read that if you want the solid Green wall for
privacy that the "Emerald Green" should be planted no more than 3 feet
apart, and the "Dark Green" no more than 4-5 feet apart, even though I
would probably still plant the "Dark Green" 3-4 feet apart so that you
have that nice Green privacy wall.