(resized) Cotton plant in all stagees From left (fully grown) to right (just planted)
Cotton is one of the plants from the Natura mod. It is used to make string and wool, string being made by a row of 3 cotton and wool by a 3x3 square of cotton.
An important note is that once a cotton plant grows, harvesting it is non-destructive. After obtaining cotton from a fully mature plant, it will generate more cotton after a short period of time, with no need to replant, similar to a pumpkin or melon stem.
However, if you do destroy it, it will drop cotton seeds, often more than one (2+), which is useful if you do not want to have to find more long grass or cotton in the wild.