A new and distinct blueberry variety is described. The variety results from selection among a population of seedlings derived from the controlled cross of the varieties ‘Elliott’ (not patented) and ‘Puru’ (U.S. Plant Pat. No. 6,701). The new variety is distinguished from others by its late seasonality, fruit size, and plant habit. Fruit of ‘Blue Silk’ is medium-large in size with a medium-strong bloom.