Yarrow is intensely bitter, to the point that chewing the root has been used as a traditional way to numb pain. When flowering, yarrow is also intensely floral and can taste like tarragon. The tart sour of a berliner-weisse compliments these flavors beautifully, highlighting and bringing them to the forefront. This delicate yet powerful beer is the perfect representation of the boquet of small white flowers this herb displays all throughout the summer.