The San Dieguito River Valley stretches from the coast in Del Mar to the mountains in Julian. It encompasses an immense diversity of plant communities from salt marsh to coastal sage scrub to oak woodlands.
Learn about the Plants of the San Dieguito River Valley by downloading the brochure.
A plant survey was conducted along Sycamore Creek behind the River Park Headquarters in March 2015. Over 170 species were identified. Click here to view the PDF file with the results, and click here for a CalFlora list created by survey leader Keir Morse.
The San Dieguito River Park Facebook Page also has a Native Flowers photo album that is continually updated as plants bloom along the trails.
The San Diego Natural History Museum has initiated the San Diego County Plant Atlas project to identify the diversity of San Diego’s plant species. For more information about the project, visit the Plant Atlas.
San Dieguito River Park volunteer Mike Angel overlaid the planning boundaries of the San Dieguito River Park on the Countywide plant atlas maps to identify the plant species that can be found in the San Dieguito River Park. View the resulting list here. This list includes links to photographs of each of the plants.
Posts about Plant Diversity from the Nature Notebook

Local Scouts Earn a Merit Badge in Environmental Science at Sikes
On Sunday March 12, local boy scouts completed the requirements to earn their Environmental Science merit badge – which is one of the required badges for the rank of Eagle Scout. At the Sikes Adobe Historic Farmstead, Ranger Jess hosted a three part environmental science project focused on invasive species for the scouts with the… Read More »

San Dieguito River Park Turns 30! 2016 – Donations make Projects Happen
In the year 2016, there were many accomplishments for San Dieguito River Park. During late winter and early spring, Park staff and Volunteers planted 13,198 plants throughout the River Park, in 15 different sites. Out of the total lump sum of those native plant species that we planted, 7,000 of those plants went to Bernardo… Read More »

Pollinator Garden at Sikes Adobe
In partnership with United States Fish and Wildlife Service, The Resource Conservation District of Greater San Diego County, Butterfly Farms, Sky Mountain Permaculture Institute, and the California Native Plant Society, a pollinator garden was installed along the Coast to Crest Trail near Sikes Adobe Historic Farmstead. The purpose of this garden is to help conserve… Read More »