Hello, i have about 15 well established thuja green giants growing as a privacy fence along the front of my house. They are all about 25 to 30 ft high.planted them in 2005. I noticed this morning that 4 of them, their tops about a foot..have started to turn brown. This scenario is different than anything i have read on these..i dont know whether to snip the tops off or what to do, i would hate to lose these. Would it hurt to cut the top off even though they wont have the shape of the otners.
