DE-FENCE is a living installation planted among carved (and deconstructed) fence posts, a printed map, a risograph-printed zine, and a series of community events at NATURE Lab a part of the Sanctuary for Independent Media's growing Eco-Art Trail. The living installation is built in relationship to NATURE Lab's back fence and the other emerging food forest networks and sign systems in the newly inaugurated space. DE-FENCE is an offering of perennial medicinal plants that support the immune system of humans while also enabling mutual support of the plants themselves and their critter companions through nutrient, structure, and insect attraction/ repulsion. The planting design and labeling system emerges out of community conversations and observation processes with the artist. DE-FENCE conflates collective health with territorial defense in opposition to medical and legal conceptions of immunity that derive from notions of private property.