Quick Answer
Yarrow does not grow in regions with extremely high temperatures, such as tropical rainforests, or areas with high humidity that cause root rot. It's also not found in regions with extremely cold temperatures, such as the Arctic Circle, or areas with very poor soil quality.
Yarrow’s Preferred Climate
Yarrow thrives in temperate climates with moderate temperatures, typically between 35°F and 75°F (2°C and 24°C). It prefers well-drained soil with full sun to partial shade, making it a common sight in meadows and along roadsides. In the United States, yarrow can be found growing wild in the western and eastern regions, with the greatest concentration in the Great Plains.
Regions Where Yarrow Does Not Grow
While yarrow can tolerate some drought, it’s not found in regions with extremely low rainfall, such as the deserts of the American Southwest or the Sahara Desert. It also doesn’t grow well in areas with high levels of salt or pollution, such as coastal areas with high salt spray or industrial zones. In Europe, yarrow is less common in the northern regions, such as Norway and Sweden, due to the cooler and wetter climate.
Similar Plants to Look For
For herbal medicine in the wild, it’s essential to be able to identify similar plants that may grow in the same region. Plantain, for example, can be found in similar climates and soil conditions to yarrow. Willow bark, another medicinal plant, can be identified by its distinctive bark and can grow in a wide range of climates, including those with high rainfall. By learning to identify these similar plants, foragers can expand their knowledge of herbal medicine in the wild.
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