Perennial peavine, Perennial pea, or Everlasting sweet pea

It requires partial to full sun, and loam or clay-loam soil that is moist, mesic, or slightly dry. It is less strongly-scented than the related annual sweet pea, Lathyrus odoratus, with which it may be confused. While grown as a garden plant it may be pervasive and difficult to remove. Because of this, this species is often considered to be a weed despite its attractive appearance.