Does clumping bamboo need to be contained?

While clumping bamboo does not spread outward as quickly as running varieties, it is forceful in its spiral outward growth and pushing off itself. This generates a lot of force. Running bamboo does not push with enough force to crack concrete, tropical clumpers can and will.

Because of this, to contain clumping bamboo it is recommended to use the 100 mil thickness of Bamboo Shield.