The Flag of Prince Edward Island (PEI) is the official banner representing Canada's smallest province by both land area and population. Adopted on July 28, 1964, it is a horizontal tricolor consisting of red, white, and green vertical stripes with the British Union Jack in the upper left canton. The flag's design symbolizes PEI's historic ties to Great Britain, as well as its agricultural heritage, with the colors red representing the soil, green standing for vegetation, and white embodying the snow that covers the land during winter. This distinctive flag, unique among Canadian provincial flags, is an essential part of Prince Edward Island's identity and cultural heritage.