What's grapevine communication ?

Grapevine communication is an informal method of communication that spreads rumors, gossip, and information through a network of individuals within an organization. It is called "grapevine" because, like the plant, information can spread quickly and unpredictably in various directions. This type of communication is often used to share news, rumors, and unofficial information that may not be officially communicated through formal channels. Grapevine communication can be both positive and negative, and it can have a significant impact on the organizational culture and morale.