Blue Butterfly Flowers is the blossom of the Blue Butterfly Pea plant which originally comes from Asia, Thailand. Here the blue flower has been planted, picked and drunk for years because of its special taste and possible positive influence on health. What makes this plant special is its reaction to citrus acid. After infusion add a few drops of fresh lemon, lime or yuzu juice and see the natural reaction. This herb contains no caffeine and is great for making a nice special cup of herbal tea, iced tea or cocktail.