NJBG Harvest Fest. Harvest Fest is a great way to celebrate the harvest season in Northern New Jersey and experience the beginning of the beautiful fall foliage. Nestled in the Ramapo mountains of New Jersey this two day outdoor festival is hosted by the New Jersey Botanical Gardens and the Ringwood Chamber of Commerce. Come experience for yourself the most-beloved event for the young and old and enjoy a weekend of fun and enjoyment. Harvest Fest will feature live music, vendors offering arts & crafts, Children's games & entertainment, hay rides, pumpkins, and multiple gourmet food trucks. Local artists, crafters, farmers, musicians and non-profit organizations lend their talent each year to make this event a great success.