These are a rich chocolatey color with flower heads around 2-4". One of my personal favorites because I love dark flowers, but also a hit with all those burgundy weddings we had this year. Similar in color to black scabiosa. Blooms are a little small, so are good in bouquets for that nice pop of dark color, and usable for wearables in event work.
Photos of the side by side show Downham Royal on left, Black Satin on right.
*All dahlias are sold out for 2017*