Greening cities growing communities : learning from Seattles urban community gardens Community gardens in America Making and sustaining a community garden Seattle model: local activism and institutional support Interbay P Patch Thistle P Patch Danny Woo International District Community Garden Bradner Gardens Park Marra Farm Magnuson Community Garden Expressions and challenges of sustainability Designing and supporting urban community gardens as hybrid public space Visions of urban community gardens: people communities and cities