Nature, environment, healthy, masculine, calming, good luck, prosperity, vitality, renewal, youth, vigor, spring, generosity, fertility, money, food, go, grass, hope, growth, charity, wealth, freshness, youth, soothing, sharing and responsiveness.
Some Cultures:
India - the color of Islam.
Ireland - religious significance (Catholic).
United States - indicates go (safe) at traffic lights, environmental awareness, St. Patrick's Day, Christmas color (red and green).
Associations:
Planets: Venus
Mercury
Days: Friday, Wednesday
Holidays: Spring Equinox, Beltane
Astrological: Taurus