Introduced from tropical America, wedelia is a widely used groundcover, popular for its beautiful, daisy-like flowers and its fast growth habit.
Wedelia has golden flowers that can easily be mistaken for beach sunflower. Unlike beach sunflower, wedelia has become a threat to many native plants, spreading out beyond landscapes into natural areas. A member of the sunflower family, wedelia It forms a thick mat of vegetation that crowds out other plants and blocks light to existing plants.
It is now listed by the Florida Exotic Pest Plant Council (FLEPPC) as a Category Two Invasive for central and southern Florida and should not be planted. Don’t plant wedelia in your landscape, and if it’s already present, consider removing it.
The plant is extremely sturdy and can survive drought, freezes, mowing, and heavy shade. The only way to get rid of it is to uproot all the plants and then apply a glyphosate-containing herbicide to any regrowth. Multiple applications may be required.