Bamboo is an extremely fast growing plant on Earth, in fact, bamboo grows one third faster than the fastest growing tree. Some species (there are over 1000 in the world) can grow up to 3.3 feet a day and up to 60ft.in height within 90 days. Bamboo grows so fast that you can almost "see it grow". Bamboo is truly nature's renewable resource. Bamboo when harvested does not require replanting, mature bamboo has an extensive root system that continues to send up new shoot for decades, so harvesting does not harm the plant, which will produce more timbers. The bamboo we use, primarily the Moso specie grow in Zhejiang province (southeast of China), which harvested for 4 to 6 years, at that time the plant reaches 90' in height and 8" to 12" in diameter, this bamboo is the hardest of all the bamboo species and used for our flooring make up to 6 feet long as well as 100% bamboo paneling and plywood up to 8' long and 4'wide.