Conical spiral for electroculture of plants and vegetables in general. Also excellent for pots as well as for open-ground cultivation. All it takes is a small piece of unusable electrical wire for its installation, which is readily available and would otherwise be wasted. Electroculture is not scientifically recognized, but many recognize its benefits. According to theory, it strengthens plant roots and protects them from disease thanks to the cosmic energy it attracts and distributes. The spiral is built according to the canons in a counterclockwise direction to better collect and channel cosmic energy to the roots. You can easily find countless and more detailed explanations and opinions online. I've also experimented with and published spirals for aluminum wire, but copper, due to its conductive properties and the capillary action that commonly forms electrical wire, can be very helpful. All you need is a small piece of standard household electrical wire, about 90 cm long, that can't be used in any other way. Then: Make your plants Great Again :-)