Can plant communicate with each other? Plants communicate through their roots by secreting tiny amounts of special chemicals into the soil all through the plant’s root zone – what scientists call the rhizosphere. These chemicals, called root exudates, send signals to every other living thing in the root zone.
https://www.hiddenvalleyhibiscus.com/botany/communication.htm#:~:text=So%20how%20do%20they%20do,thing%20in%20the%20root%20zone.