Green Apple

Green - Color symbolism and psychology

Nature, bad spirits, spring, fertility, youth, environment, wealth, money (US), good luck, vigor, generosity, go, grass, aggression, inexperience, envy, misfortune, coldness, jealousy, disgrace (China), illness, greed, corruption (North Africa), life eternal, air, earth (classical element), sincerity, hope, Cancer (bright green, star sign), renewal, natural abundance, growth, health, August, balance, harmony, stability, calming, creative intelligence, Islam.
During the Middle Ages, both green and yellow were used to symbolize the devil. Green is believed to be the luckiest of colors in some western countries including, Britain, Ireland (where it is also the national color) and the U.S.
Color symbolism and psychology - Wikipedia, the free encyclopedia

Green is a color

Green is a color, the perception of which is evoked by light having a spectrum dominated by energy with a wavelength of roughly 520–570 nm. It is considered one of the additive primary colors.
Green - Wikipedia, the free encyclopedia