What is Prunella Vulgaris? Prunella vulgaris is a perennial wildflower that is also most commonly known as Heal All or Self Heal. This plant grows in multiple regions across the globe. Self Heal is considered to be a native plant to North America, in which its native habitats include moist fields, pastures, roadsides, and the … Continue reading Prunella Vulgaris, the All-Healing Plant