Cool!
I think both simple and complex explanations point to additional helpful information. Can't wait to see what people have found to be their most-consistently "last FFO non-reblooming scapes" in their gardens, and any hints they may have as to what conditions put them in last-blooming-place for a given year. For me, this discussion made me realize that my season is very short (last FFO is first week of July!) because of the extreme heat that covers the garden all summer. I'll be keeping my eye out for later FFO cultivars that also perform well in my blast furnace garden.
And, forgot to mention,
@seedfork, I love how your great questions lead to more great questions, and fascinating answers!