Cell cultures of Vaccinium myrtillus configured to grow in suspension culture in a liquid medium. The cells are derived from one or more V. myrtillus plant parts, such as an edible plant part (e.g., a leaf part or a berry part) or a stem part. The cells are adapted to grow to a high density is a relatively short period of time (e.g., about 7 days). In addition, the cells are adapted to produce high concentrations of polyphenols and/or procyanidins and essentially no anthocyanin. Methods for production of polyphenols and/or procyanidins from Vaccinium myrtillus cells grown in suspension culture are disclosed.
