eli5: how do climbing plants “know” where to “reach” places where they can grab onto to grow up a surface? Ex: peas have those little green string “fingers” that they wrap around trellis in a garden.

Question

eli5: how do climbing plants “know” where to “reach” places where they can grab onto to grow up a surface? Ex: peas have those little green string “fingers” that they wrap around trellis in a garden.

In: Biology

Answer 1

They flail in a circular motion until they hit something. Time lapse footage of how they grow looks kinda creepy.