I think it has to be weather conditions. My latest repeat bloom stalk
is on the old 'Butterfly Wings' Pods nearly ripe on the same clump and
here comes a new stalk. If it has any record of doing that, I can't
recall. You'd think some of the TBs and reblooming TBs that skipped
this year would try, but they haven't. But there's been an
extraordinary amount of it here this year in ABs and AB seedlings.
Ordinarily I consider the attempt a wasted rhizome, but most of them
have successfully managed a decent stalk and bloom this year.
Texas Zone 7b, USA
Statements made on and attachments (including but not limited to photographs of irises or people) sent to this list are the sole responsibility of the individual participants and are not endorsed by, or attributable to, or under the control of the moderator of this list.