I bought some Green Giant Arborvitaes in 5 gallon pots on a whim a year or so ago for my landscape. Unfortunately, I wasn't quite sure where I wanted to put them, so they've stayed in the pot since. They're obviously very hardy as they've survived suboptimal conditions for quite a length of time, but there's some foliage that has died, and they've lost some of their pyramidal shape and their lush green growth.
I've put a few in the ground this week finally.
Will they regain their vigor and natural pyramidal shape as they begin growing in the ground, or should I buy new ones and start over?