parsley is a biennial... cilantro and dill may reseed but they are not perennials either...
perennial anything is a good thing- less work!
asparagus, various berries, herbs and rhubarb are pretty much it for perennial edibles for me although i do keep some peppers alive in the greenhouse each year and have a couple of basil plants that are a number of years old (african blue and greek columnar- not regular italian).
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