What is this? September 13, 2012 by kk704 This plant was in a dry meadow: Comments One thought on “What is this?” Karl Anderson said: Is this in New Jersey? That’s purpletop vervain, Verbena bonariensis. It’s a warm climate plant, often planted in butterfly gardens. In warmer climates, it’s perennial, but in New Jersey it would probably be treated as an annual. Where the climate suits it, It naturalizes pretty well; I’ve seen it growing as a roadside weed in South Carolina and Florida. Karl A. Leave a Reply Cancel reply You must be logged in to post a comment.