More on their site, called Gardens of Gratitude:
Is it possible to transform a town into an edible oasis in one weekend?
This April, we're attempting to plant 100 Edible Gardens in a single Weekend in neighborhoods across West LA!! Join a Garden Crew to help plant a garden in your neighborhood, or Register to Grow a Garden to have your garden added to our map and planted with the help of our volunteers and gardening experts! In one weekend, hundreds of Angelenos will join together to grow food and community in one giant garden party!
Join us in making our town an abundant, edible paradse of fruits, berries, nuts, veggies and flowers!
April 24th & 25th, 2010