Each encircles its support in the direction predetermined by its genes. In some cases, a vine's innate tendency is to climb haphazardly. But first, the tip of a twiner's new shoot casts about in a wide arc until it finds an object to latch onto. Such efficient climbing allows you to spend energy elsewhere, since it's often easy to tell whether or not the shoots are heading where they're supposed to. A little attention to the type and location of supports is important with tendril climbers, especially at first.
Tendrils are short and profuse, erupting hither and yon.
Thus, a few days' absence from a pea patch, not enough supports at hand, and maybe a windy day to boot, may mean you meet an impenetrable mass of tangled foliage when you return. Tendrils that failed to find a support may simply latch onto a neighboring stem or each other. They must only be reminded that they don't have dominion over the earth. You'll want to prevent them from smothering perennials, and if they've latched onto the side of a house, prune them away from windows and gutters and fish them out of cracks. Hooks Some plants resemble mountain climbers, using hooks to grab toeholds on a support and climb skyward.