"What is the most common flowers in the United States"

While it's tricky to pinpoint a single "most common" flower across the entire United States because it depends so much on region, climate, and whether we're talking about wild or cultivated flowers, many gardeners and botanists would point to the dandelion as an incredibly widespread and resilient plant. Though often seen as a weed, its bright yellow flower is recognizable everywhere. In terms of cultivated flowers, species like roses, tulips, and marigolds are extremely popular in gardens and landscaping throughout the country, with different varieties thriving in various parts of the U.S. The daisy family is also exceptionally diverse and common in natural settings across North America. These flowers are successful because they can adapt to many different environments and are easy to grow and spread.