Julia, I've never tried ech seeds under lights but have had good success wintersowing them. I've done the regular purple, doppelganger, and White Swan.
Here's what Clothier says
Echinacea pallida, and purpurea , Sow at 20ºC (68ºF), if no germination in 3-4 wks, move to -4 to +4ºC (24-39ºF) for 2-4 wks
Echinacea angustifolia, paradoxa, and tennesseensis , Sow at 18-22ºC (64-71ºF) for 2-4 wks, move to 4ºC (40ºF) for 9 wks, move to 10ºC (50ºF) for germination
You might want to pose your question on the seed forum.
Karen
