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

https://www.scribd.com/document/1033629987/Electroculture-and-Compost-Tea-Enhanced-Nutrition-218531

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.