Electric Plant raises $11.2 million seed round to launch Bombadil plant‑signal model

Bombadil can interpret micro‑volt changes in about 125 species, from ferns and redwoods to tomatoes and dahlias. Sensors the size of a folded iPhone are screwed into the cambium and transmit data via a low‑power wireless network to a cloud service where Bombadil generates actionable insights, such as watering or fertilizer adjustments. Mast says the sensors cost only “tens of dollars” versus existing tools that run into the thousands, and the system can reduce water use by 20% or more while boosting yields. Initial customers have not been disclosed, but the startup envisions use in agriculture and forestry.