Bidens, but not the Joe sort

It’s been a really grim day, horrible weather and I’m not feeling well. I’ve been asleep on the sofa, watched TV from the sofa, read my book on the sofa. So I felt like a little bit of brightness was needed with this cracking plant, it’s a tall perennial bidens that I bought from Great Dixter in September (plus quite a few others…). I had no idea there was a perennial type of a plant I always grow as an annual. It’s still flowering happily although this photo was taken last week.