Plants exist inside an ambient electric field they never stop experiencing. The Earth’s fair-weather atmospheric electric field averages roughly 100–300 volts per meter at ground level, produced by the roughly 2,000–6,000 thunderstorms active somewhere on Earth at any given moment. This isn’t a fringe measurement — it’s an established atmospheric physics baseline (McDonald, 1953, The Earth’s Electricity).
Telluric electricity — sometimes called “natural earth currents” — describes the related phenomenon of naturally-occurring electric currents flowing through the ground itself, driven by geomagnetic and atmospheric activity. Both terms have a place in Electric Fertilizer’s own historical vocabulary: “natural earth currents” is the term used in reader-facing writing, while “telluric electricity” appears in the site’s own historical tagging and metadata for the same subject matter.
One of the oldest cited data points is a study by French agricultural chemists M. Grandeau and M. Leclerq (1898), who shielded plants from the Earth’s ambient electric field using a grounded Faraday cage and compared them to unshielded plants nearby. The shielded plants reportedly grew “feebly,” while the unshielded plants grew 50–60% better and showed improved flowering and fruiting. This is a genuinely old, third-party historical result — not an Electric Fertilizer experiment, and not independently re-verified in this pass. Treat the specific percentage as a historical citation, not a current, verified finding.
Earth (telluric) currents specifically were first mapped in the 1860s — an 1862 experiment by the scientist Lamont, in the Munich Alps, used metal plates placed in the ground along north-south lines to detect naturally-occurring currents flowing across the Earth’s surface, stronger in the north-south direction and shifting direction between day and night. This is the historical basis for describing telluric currents as a real, measurable, direction- and time-dependent phenomenon distinct from atmospheric electricity, even though the two are related.
Plant physiologists including Andrew Goldsworthy have separately suggested plants can respond to the approach of a thunderstorm by increasing their growth rate in anticipation of rainfall — a hypothesis about drought preparation, not a claim about electricity being the sole driver, since rain itself also delivers nitrogen in a plant-available form.
HarvestStorm’s Atmospheric Energy Collector is named for this same phenomenon — it’s designed as a passive way to draw on ambient atmospheric electricity, in the same lineage as the historical antenna and “earth battery” methods documented in Earth Batteries. The connection between the historical science described here and the specific performance of that product has not been independently reviewed in this pass.
See What Is Electroculture for how this fits into the broader mechanism picture, and Research for current, evidence-graded findings.