Hello, I have a coneflower/echinacea plant I’m harvesting for tea. I’ve plucked the petals and leaves to dry but my question is about the seed heads. I read online to wait til the petals are brown on the plant to harvest the seed heads. But how can I both harvest the petals and the seed heads if I need purple petals for tea but brown ones to dry out the seeds? Hope that made sense. Also, if I’ve already harvested the seed heads while the petals are purple, is there anyway to still dry the seeds? Thanks for the help!