Thanks. I will try to pay better attention this year. Per my notes, I usually have blooms for about a month, from mid June through mid July. No clue if they are sending up new stalks or not and all my plants are way too thick for me to figure out if they are coming from the same fan or not. I have never noticed any lag, it just blooms until it's done, then I wait until the stalks turn brittle and pull them out.