There are two main types of growth, determined by the root, or 'rhizome' structure: clumpers (sympodial) and runners (monopodial). In general, the clumpers are tropical and the runners are of temperate climates. RUNNERS CAN BE HIGHLY INVASIVE and uncontrollable. Rhizome barriers can be effective if properly installed. Runners are better suited for container plantings than most of the large clumpers.
Aside from its beauty, bamboo's most striking characteristic is its immense vitality. A grove at Hiroshima in 1945 at ground zero survived the atomic blast and, within days, sent up new shoots. One species of bamboo has been known to grow over four feet in 24 hours. New shoots emerge from the ground with the diameter they will have at their mature height, which will be attained within 60 days. New shoots are quite vulnerable and should be treated with care. A rough touch or any type of damage could cause the culm to abort (die back).
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