Is a sunflower an invasive species?

Sunflowers (genus Helianthus) are not typically classified as invasive species in most regions. However, certain species, like the common sunflower (Helianthus annuus), can become problematic in some ecosystems if they spread uncontrollably. In general, the invasiveness of a plant depends on its ability to thrive and outcompete native flora in a specific environment, so context matters when assessing its impact.