In specifying Bamboo for our garden for our garden I learned a great deal about this marvelous plant. There are over 1,200 species of Bamboo. They grow by sending up new shoots, one of which is shown in close detail below, rather than by expanding existing growth. These new shoots climb towards the sky wonderfully quickly; you can see the growth from day-to-day. Since Bamboo can be aggressively invasive, care must be taken when planting them. Ours are in containers.