The Carnahan Elementary Eco-Friends hosted the Acorn Project, an annual planting of seedling trees as a community-outreach service-project, on September 22, 2012. Neighborhood family and friends participated in a tree planting project using only native trees, grown by students, from the seeds of local forest giants. Participants learned the basics in tree planting and were welcomed to adopt extra trees following the event. The planting area is just north of Earl Scott Pond near the Buddy Calk Trailhead in the Leon Creek Greenway near the Babcock Road bridge over Leon Creek. The planting site that was selected for a joint study by the City of San Antonio Parks and Recreation Department’s City Forester, Texas Master Naturalist Michael Nentwich, and students of Peggy Carnahan Elementary School. The group's moto: We are not just planting trees; we are developing tree-planters.
Funding for the equipment used is provided by a Northside Education Foundation Innovation Grant. Expert volunteer support was provided by members of San Antonio's Alamo Area chapter of the Texas Master Naturalist (AAMN) organization.