Can the navy beans you get in a plastic bag at the grocery store be planted in the garden? If so, will they produce?
It is possible to grow bagged, store-bought dry beans (not those purchased from cans). Soak them in water for a few hours and then sprout them in a jar with a wet paper towel, before planting them.
Yes, the pods are edible both raw and cooked; and are delicious.
Here's an article that may be helpful: https://www.gardeningknowhow.com/edible/vegetables/beans/tips-for-growing-beans.htm
This article will help: https://www.gardeningknowhow.com/edible/vegetables/beans/growing-navy-bean-plants.htm