Blueberry - Duke (Northern Highbush)The Duke Blueberry is an early season variety, renowned for its large, firm berries and exceptional flavor. Known for its reliability and versatility, Duke is an excellent choice for home gardeners and commercial growers who desire a high quality, productive blueberry with an extended harvest period. Key Features Early Ripening: Duke is one of the earliest blueberry varieties to ripen, allowing you to enjoy fresh, sweet berries in early to mid summer.