Yarrow (Achillea millefolium) is a native North American plant that’s popular with pollinators and practically carefree, making it perfect for borders, ground covers, and open meadows. Yarrow is an herb. fever, absence of menstruation, dysentery, diarrhea, loss of appetite, gastrointestinal tract discomfort, and induced sweating. Some people chew the fresh leaves to relieve toothache. When taken by mouth: Yarrow is commonly consumed in foods. But yarrow products that contain a chemical called thujone might not be safe. Thujone is poisonous in large doses. Yarrow is possibly safe when taken in doses of 250-500 mg daily for 12 months. What is the herb yarrow good for?! Is the yarrow poisonous to humans?! Is yarrow an annual or perennial?! Why is yarrow called devil’s nettle?! Achillea millefolium, commonly known as yarrow or common yarrow, is a flowering plant in the family Asteraceae. It is native to temperate regions of the Northern Hemisphere in Asia, Europe, and North America. It has been introduced as a feed for livestock in New Zealand and Australia. Yarrow may accumulate nutrients. According to this USDA database, yarrow’s deep roots mine the subsoil for potassium, calcium, and magnesium. According to sources like Gaia’s Garden and Edible Forest Gardens, yarrow may also mine for phosphorus and copper, making it a potentially nutrient-rich mulch
