Yes, winter is knocking at our door.
You just planted some trees t his fall.
Now you are worried about them surviving.
Well, per my tree farm expert, now is a great time to plant.
Make sure you dig the whole 1 1/2 times the size of the root ball on the tree.
Water the hole heavily, at least 5 gallons.
Put the tree in and fill the hole with fresh nutrient filled dirt.
Pack it firmly.
Stake the trees so they stay straight. Water heavily until the ground freezes.
I did that with these 26-30 arborvitae's 2 years ago and all survived.
Advice was golden!