Enthusiasm and unlimited energy are some of the meanings of the orange rose.
Beautiful Orange Rose
Photograph by 
Orange Rose meanings
The symbolism is further strengthened by the brilliant hue of the burning flames seen in the orange rose. The orange rose also celebrates new beginnings, such as a new venture or journey.
The orange rose also indicates pride. When you are honored to be associated with a friend, and believe that the person deserves to be applauded, then give him or her some orange roses. "I am very proud of you", the orange rose says.
The orange rose, as stunning as a blazing evening sky, seeks to convey powerful emotions. An open declaration of desire is the most obvious symbolism associated with the orange rose. Enthusiasm, pride, and best wishes are also some other meanings of the orange rose.
Info source
@gratefulvibes