Anyone have any tips on collecting seeds from Coneflowers and Black Eyed Susans? I figure I can start another bed in a side yard and use some seeds to get some cheap color next year. I have already divided a bunch of Hosta's, Sedum, Salvia, Coreopsis, daylilies, and Bellflower into pots to get it started.

Let the seeds dry on the plant if you can. I then collect the seedheads in September and store them in the basement (cool and dry). It's a good winter job to remove the seeds from the seedheads.

+1 Andy. Both plants also divide easily, so you can take a nick off the parent plant and transplant that to the other garden. In my case, I do the reverse and weed them out, plus Round Up and remove daughters that sprout (everywhere!) from my Black-Eyed Susans.