An average bunch of parsley weighs about 2 ounces. A bunch of parsley, when chopped, equals about 1 1/2 cups of parsley. To keep a bunch of parsley fresh, it can be stored at room temperature with its stems submerged in a cup of water.
When stored in this way, fresh parsley keeps for up to five days. For longer storage, parsley can be dried or frozen. Parsley should be added to the dish at the end of cooking, as heat destroys both the nutritional value and flavor of parsley. Parsley is a good source of folic acid, iron, potassium, and vitamins A and C.