"Green" symbolizes leaves, nature, safety and peace in Japan. When I see green color, I feel fresh and peaceful. Green leaves and green vegetables.
Now green color is available as the color of environmental conservation on a global basis. "Green Peace" is a good example.
But sometimes green color has a different image depending on the country, culture and religion. In Islamic states, green is regarded as a very sacred color because of Muhammad's green turban.
On the contrary, in English, green with envy means very jealous.
Different point of view. I need to remember there exists a big difference everywhere.