I came across a Treehugger article about Falling Fruit this week – their website is https://fallingfruit.org/ They have a world map and are encouraging people to add to it to create a wild food larder for anyone to find. A wonderful idea.
From the Falling Fruit website..
Not just a free lunch! Foraging in the 21st century is an opportunity for urban exploration, to fight the scourge of stained sidewalks, and to reconnect with the botanical origins of food.
Our map of urban edibles is not the first of its kind, but we aspire to be the world’s most comprehensive. While our users explore, edit, and add locations of their own, we comb the internet for any pre-existing knowledge, hoping to unite the mapping efforts of foragers, foresters, and freegans everywhere. The imported datasets range from small neighborhood foraging maps to vast professionally-compiled tree inventories. This so far amounts to 745 different types of edibles (most, but not all, are plant species) distributed over 611,390 locations. Beyond the cultivated and commonplace to the exotic flavors of foreign plants and the long-forgotten culinary uses of native plants, foraging in your neighborhood is a journey through time and across cultures.
Join us in celebrating the local and edible! The map is open for anyone to edit, the entire database can be downloaded with just one click, and our code is open-source. If you pick more than you can use or are overwhelmed by the bumper crop from your private trees, we encourage you to donate the surplus produce to charity or your neighbors with the help of local food redistribution programs.
There are some other cities with well established edbile maps. Edible York have an edible map of the city and it also has areas of guerilla planting as well as wild food. Urban Edibles is another site which has been mapping the city of Portland, Oregon for a long time.