I have a few Arborvitae trees to create more privacy behind of my fence. Since my land is being seen from the nearby two stories townhouses, I want my Arborvitae trees grow horizontally over my fences. Pruning all bottom branches of an Arborvitae trees help it to grow horizontally on top of the fences or harm the tree?
Arborvitae trees are used to create living walls, by planting lots of them close together. They grow tall. Pruning lower branches will not make any tree grow horizontally. Pruning the growing tip will make some trees grow bushier.
An example picture from Almanac