Chocolate Cosmos astrosanguineus is another of my favorite perennials and beautiful pressed too. It's hardy zones 8-9 so I do protect them in my zone 7 garden with some evergreen bows during winter. They like partial to full sun and grows up to prox 18" tall. It blooms summer through autumn and is herbaceous (meaning all the foliage dies down for winter) and will come up again in spring. This photo has the morning due on them but they usually have a velvety appearance of reddish brown to blackish and scented with chocolate and it really does smell like chocolate, who wouldn't like that.