What do you get if you cross an apple tree with a littleleaf linden? The Guerrilla Grafters—a renegade urban gardening group in San Francisco—hope the result is a metropolitan food forest. The volunteer activists splice branches from fruit trees onto the non–fruit bearing trees that line their city streets in an effort to grow cherries, Asian pears, and other fresh produce for local residents, free of charge.

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Source: utnereader

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