For balcony growers, compact coil pots use a small copper helix inserted into the medium

https://medium.com/@iortusfkny/electroculture-for-edible-landscaping-beauty-meets-function-f9921b666730

For balcony growers, compact coil pots use a small copper helix inserted into the medium, aiming to localize subtle charges near roots without requiring tall poles or complex grounding arrangements.