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

https://www.scribd.com/document/1031814603/Earth-Friendly-Growth-with-ElectroCulture-Gardening-154667

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.