Some bamboo species can grow almost a metre in a single day.
Why it is true
This extremely rapid growth is due to a unique cell expansion system that allows the plant to reach its maximum height in a few weeks, without needing to thicken the stem.
Source: Plant Science
Would you rather be asked first?
This is the reading side of the site, so the answer is in the sentence above — that is the whole point of it. Test yourself works the other way round: the question comes on its own, and the fact and the explanation only appear once you have answered.
Related facts
Nature
Some species of bamboo can grow up to ninety-one centimeters in a single day, making them the fastest-growing plants in the world.
Nature
Bamboo can grow almost one meter in a single day under ideal conditions.
Nature
Certain species of bamboo can grow up to ninety-one centimeters in a single day.