ediblelandscapingsc said:........... If reblooms nearly always comes from a replacement fans then any good multiplier could be considered a rebloomer. To me these should be called successive bloomers and not rebloomers because it's different fans blooming at different time frames. Even with other plants a rebloom happens on the same plant and not a pup or sucker....... IMHO
In iris, that's exactly what is termed a rebloomer. An iris rhizome only produces one bloom stalk. I think it's believed that the timing of rebloom on new fans is controlled by genes and results in several different kinds of rebloom - ever-blooming, summer reblooming and fall reblooming - but all rebloom is on a completely new fan. Most iris are spring bloomers and generally don't bloom outside that time, no matter how well the extra fans grow so the ability of a cultivar to do it defines a rebloomer. I'm more familiar with iris than daylilies, so having new fans produce scapes later in the season and calling it rebloom is an easy step for me.
