clumping or running
I have a typical tract home with wood fences.
I'm thinking of planting bamboo along the wood fence for screening. I need about 60 feet linear length to screen on one side. If I want evenly spread look and not too dense, and that the ideal height is around 20 feet, what kind of species are recommended!? I'm in zone 18. I heard that it is recommended to use root barrier for running species. Does it mean that the root barrier is not necessary for clumping species? Thank you for your advices.