The Sonoma County Board of Supervisors Tuesday approved a $215,000 grant to help develop the Bayer Neighborhood Park and Gardens in southwest Santa Rosa.

The city bought the six-acre property for the park on West Avenue in 2007 for about $5.3 million. Funding for the purchase included a $1.3 million grant from the county's taxpayer supported Agricultural Preservation and Open Space District.

The project has included programs to teach people about gardening through a partnership with the nonprofit Landpaths, which helps manage the site.

At completion, the park amenities are to include a greenhouse, farm stand, livestock barn, amphitheater, picnic area, multi-use turf area and a community center.

The project has received more than $11.5 million in grants and other funding for acquisition and construction, which is expected to begin in 2012.

The $215,000 in county funding also comes through the open space district's matching grant program.

The match is $181,864 from other public and private grant programs, $13,883 from individual financial donations, and $23,175 in donated time and services.

Over its lifetime, the open space district's matching grant program has allocated $29 million in funding for parkland, wildland and agricultural land.