More than 52 types of trees have been planted in and around the city, with the most common being plum, European beech, crab apple, Irish strawberry tree, pear, walnut, honey locust and sweet chestnut.
"Food foragers should be careful not to damage the trees when harvesting and only take enough for their own needs. Foraging etiquette means people should care for the trees and leave enough for the next person, so everyone can enjoy the seasonal bounty," he said.
Working in tandem with council specialists in geographic technology and green spaces, the SmartView map allows users to zoom in on food-bearing areas - often parks or roadsides.
Within days of going live, the online map attracted thousands of views.
The council said plans were under way to add more details about the trees such as harvest times, an image of trees and useful links to help people identify and enjoy this free food.
-RNZ