Skip to content

Plant Profile: Coastal Goldenbush

Irvine Ranch Natural Landmarks hosts a variety of wildlife, including important native plants like coastal goldenbush (Isocoma menziesii). A perennial shrub native to California, Baja California and Baja California Sur, coastal goldenbush grows in the coastal sage scrub, grassland and chaparral habitats found on the Landmarks. 

Coastal goldenbush can be seen by visitors in large clusters, creating a bright and vibrant scene across the Landmarks. Part of the daisy family, just like its name, coastal goldenbush produces brightly colored golden and yellow flowers that get brighter as the temperatures increase during the summertime. The plant’s small, thin leaves are a light shade of green that aids in moisture retention during the hot summer days, however, the species continues to thrive in the autumn months as well. 

Commonly used in restoration projects for its pollinator benefits, the coastal goldenbush is a host plant for pollinators like the white-lined sphinx, sunflower moth, orange tortrix moth and snakeweed borer.  Irvine Ranch Conservancy (IRC) staff grow these at the Native Seed Farm, along with more than 50 additional species of plants, where they are used for restoration projects throughout Orange County

Next time you are out on the Landmarks, keep an eye out for these beautiful and crucial flowers!