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.