Blue Vervain This is native and did fair to get the bees. The thing is though it gets to be 6 feet tall and doesn't look nice. There's nothing wrong with the foliage, it's just the flowers are so few. The plant looks 10 times better when viewed looking down on it. See
here.
I'd say plant it in the back of a flower bed and hopefully next to a deck or patio that's higher.
I bought from
Prairie Nursery and was very satisfied. The plants were in 3 inch pots and quickly sprouted to the 6 feet size.