Plant hormone are the chemical messanger which helps in the development and control its growth and other functions
Plant hormones are signal molecules produce with in plant and they control all aspects of development and growth
The function of control and coordination in a plant is performed by a chemical called plant hormone…

These are hormones produced by plants that control or regulate germination, growth, metabolism, or other physiological activities. Auxins, cytokinins, gibberellins, and abscisic acid are examples of plant hormones.
Plants synthesise the chemical substance which co-ordinate the growth, development and response to environment called plant hormones
These are chemical compounds which helps to coordinate growth, development and responses to the environment.
They are organic substance released in growing regions of plant and responsible for growth , development and differentiation
AuxinGribberlingsCytokines

Plant hormone also known as phytohormone are chemical substances present in a plant which respond to the external stimuli.