I saw this when researching Melissa, hoping to find some clues on how folks winterize this plant (no luck), and noted this in the general description. Seems to me an herb/forb is an annual, biennial, or perennial. I suppose if a perennial is not hardy to your zone, you might plant it as an annual (I do that with lemon verbena) but it would still be categorized as a perennial (just not hardy to my zone) . On that basis, can a re-seeding annual be termed 'suitable as a perennial' (which is likewise incorrect)? In the interest of keeping our database as accurate as possible, this struck me as somewhat odd. But perhaps I am missing something?