Twine
/twaɪn/
Definition
Twine describes the climbing habit of certain stems or tendrils that coil around a support as they grow. It is a plant movement response, not a separate structure. Unlike vines that cling with adhesive pads or aerial roots, twining plants ascend by wrapping their flexible growth around poles, wires, or nearby stems. The direction of coiling is usually characteristic of the species, as seen in many beans and morning glories.
Use in Gardening
- Support for climbers: twine is commonly used to guide vines and other climbing plants onto trellises, stakes, and cages, helping stems grow in the intended direction and improving access to light and air.
- Tying without damage: Soft twine can secure stems loosely during training, but tight loops may rub or constrict tissue as the stem thickens, which can interfere with water and sugar movement.
- Choice of material: Natural-fiber twine breaks down over time and is often chosen for seasonal crops, while synthetic types last longer but should be monitored so old ties do not cut into growing stems.
- Useful in propagation and harvest: twine is also used to hold bundles of drying herbs, mark rows, and support fruiting stems in crops such as tomatoes, where keeping growth off the ground can reduce rot and soil splash.