In zone 6b my echinacia normally bloom into October though the white swan tends to end by early October. Are you trying for November blooms? It's an interesting idea but I hate to miss out on the June/July blooms. Good luck!

Since echinacea is a weed in my yard, I've cut it down a few times prebloom and it will try to bloom again. So I believe the answer is yes.

Hmm, interesting idea. Maye I'll give it a shot next year. I always wonder why echinacea is touted as a "late summer" bloomer when it's in bloom in early to mid-July. Late summer to me is September, not July.

Off the top of my head, I'd guess Ohio is zone 6 or 5 or both, depending where in Ohio she is. I've never read her book (think I'm the only gardener who hasn't, lol!) but goodness, she must say what zone she's in, no?

:)
Dee