Now is a good time to collect echinacea seed heads from the garden. I usually keep two inches of stem that I can hold onto later.
The seeds are the white segments in the picture. I wear gloves and use needle nose pliers to pry the seeds out.
It’s easy to do the math and see that one seed head can give you a 100 seeds and thus 100 new plants in the spring.
I’ve had equal success planting the seeds either in the fall or early spring. I cover the seeds with a bit of potting mix to mark the location.
You probably won’t get flowers the first year, but you will get lots of flowers the 2nd year.