I just saw this post and wow what a picture!
I loved these flowers. Madeline, the poster, said they were tassel flowers. So I decided to do a bit of checking. Right away I found this entry at a seed seller
❁ Tassel Flower is a tender annual that grows to two or three feet in height. Flame-colored, button-like flowers appear on slender stems in summer. Sow seed after last frost in spring in a well-drained, sunny site. Thin seedlings so they are six inches apart. Tassel Flower is native of the Far East and was introduced into England in 1799. The species works well as a quick and curiously attractive filler in the summer flower border. ❁
I'd love to put some of these in my garden - especially the red ones.