Rebloom in the north.
YES!
What I have found out is that we cannot rely on zones.
Zone 5 in Missouri, Nebraska etc has blooms much earlier than my zone 6 north of Boston. Much earlier! And plants do not have time to rebloom if they don't start earlier enough.
Recurrent bloom is a better goal.
I purchased 3 from Karol E that have recurrent tendencies. Problem for me is that I so heavily set on these 3 plants that I don't get to see much recurrent bloom And seedlings have not bloomed yet, or worse - seeds have not been planted.
YIKES! am I behind. Just no room at the inn, anymore!
