Plants communicate with each through physical contact, chemical and light-mediated signals. Now it seems that having a friendly “chinwag” also makes plants grow better.
A group of researchers noticed that blocked chilli seeds grew significantly better with basil plants.
This suggests that plants are talking to each other via nanomechanical vibrations.
In the absence of a neighbouring plant, germination rates were very low, but when the plants were able to openly communicate with the seeds, more seedlings grew.Read more at University of Western Australia