Just to give you an idea of the great variety of edible native plants you can find, below is a partial list of trees and shrubs only that grow in Pennsylvania that bear edible fruit. There are many more herbaceous plants as well that are edible.
A cautionary note: Be sure you know what plant you're about to eat! There are look-alike plants that can give very unpleasant, even dangerous, results if eaten.
Is 'Hot Lips' salvia edible from Richmond TX June 23, 2010 - Mr Smarty Plants,
I recently planted "Hot Lips" a form of Salvia Sage in my yard in Richmond Texas (just southwest of Houston). The leaves and flowers smell so great I would like to know if either ... view the full question and answer
Spots on non-native naval orange trees from Stockton CA October 20, 2012 - I have two mature Navel Orange trees. One tree has developed spotty chlorophyl depleted areas that were not on the oranges when they were smaller. In addition, the oranges on both trees are smaller ,... view the full question and answer
Wild plum tree failing to bloom from Simonton TX May 04, 2013 - I have a wild plum tree that has been in the ground for 3 or 4 years and it has not ever flowered. Why? I don't know what kind it is. I dug it up from a friends yard. Her wild plum trees have flowere... view the full question and answer
Recipe for cherry jelly from wild black cherry tree in Tennessee July 02, 2008 - I think that we have a wild black cherry tree on our farm. I understand that the fruit is edible. Do you have a recipe for jelly or any other food product using this fruit? view the full question and answer