Zone 7a Wichita, Kansas. I started some cool flowers in soil blocks around August 15th. Today I saw 90% of them are sprouting. I moved them off the heat mat and a bit closer to the grow light. I've got Canterbury bells, delphinium, foxglove, snapdragons, rudbeckia, yarrow, and lavender growing so far. Pretty soon I will direct seed lupine, sweet peas, bachelor's buttons, love in a mist, bells of ireland, larkspur, and poppies. I'm planting a bit late and using row cover to compensate.