The flowerhead clusters start out black and slowly become a vibrant purple with tiny bright white dots in many of the tiny flowers. I plan to use them in bouquets paired with white hydrangea or white snapdragons and perhaps some other blue or pink flowers. The foliage is quite attractive too, starting out dark colored and becoming mor green over time.
They are not perennial in my zone (zone 5) so I plan to attempt overwintering them under flourescent lights in my basement.