I've been looking for some seeds of purple/black carrots for next year and have come across 'Spanish Black' listed at Thomas Etty Esq. and 'Purple Dragon' listed at a few different places. I couldn't find Spanish Black anywhere else, and the details of it is no more than a blurb that states, "An ancient Spanish carrot". Purple Dragon is listed several places, but none of the places write on its history.
Can anyone help me find more info on either of these?