View of riparian habitat along the Cosumnes River north of Rancho Murrietta, CA.
Cosumnes River View of riparian habitat along the Cosumnes River north of Rancho Murrietta, CA. © Jeff Hart

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Cosumnes River Preserve Habitat Restoration


Please join our Cosumnes River Preserve Habitat Restoration Team. 

TNC hosts at least twenty volunteer work days per year at the Cosumnes River Preserve to accomplish seasonally appropriate land management needs. The workdays are always on a Saturday and last from 9 am – 3:30 pm. Included with each of the 20 workdays is informal training on first aid in nature preserve settings, use of chainsaws, and (for those who wish) application of herbicides.

After the first major rains of winter saturate the soil, we begin our planting activities. Most of our sites are difficult to irrigate, so we plant in the middle of winter and very early spring to allow the most root development possible before the long, hot summer.

Currently our planting days are scheduled for December 7, January 25, February 8, and February 22 from 9:00 am – 3:30 pm. Weather can alter or cancel the plans. If so, anyone who has RSVPed by email will get a notice a couple days before the event. 

Interested people should RSVP to Alex Cabrera at Please RSVP no later than 48 hours before the event.

A forest isn’t just trees! In many wooded habitats, a couple dominant tree species coexist with a diverse community of shrubs, grasses, and wildflowers. Together, these shorter plants are called the understory, and lots of animals depend on them. Unfortunately, many restoration events over the years only considered the charismatic overstory tree. These sites now need us to infuse them with diversity to reach their full habitat potential. We plant grasses, sedges, shrubs, small young trees of different species, and sometimes perennial herbs.