A rhizome is a type of underground stem that grows horizontally and can produce new shoots and roots at nodes along its length. This adaptation allows plants to spread and propagate vegetatively, making rhizomes an important feature for species like ginger, bamboo, and certain grasses. Rhizomes store energy and nutrients, enabling the plant to survive adverse conditions and regenerate after disturbances.
Ginger is an example of rhizome..
The time to dig up iris is late summer when they are dormant.
Yes.Rhubarb is in fact a vegetable, one of the most unusual because it is eaten with sugar. The identity of rhubarb has vexed gardeners and chefs for years, so much so in fact, that a in 1947 a US court ruled it was a fruit.It's considered a vegetable here in UK as the edible stalks of the rhubarb plant grow from a sturdy rhizone (underground stem), and the best stalks are long, thin, vibrant pink and tender, and are the result of being force-grown in artificial darkness.