Pippi21 said:Pre-bloom to me means that there are buds that have been formed but has not bloomed yet.
That is not quite right. A pre-bloom is a rebloom scape that would have bloomed in the fall, but weather or other reasons kept it from coming up and blooming, so it was suspended, and came out in early spring, prior to regular bloom time. If you go up to the first few posts in this thread, it is explained. A pre bloom scape is always from outside the fan's base, not from within the formation of the leaves of the fan like a normal fan. That is why I posted the photos showing the base of the fan, where the scape comes out - to show the difference.
It is confusing for a "newbie" to daylilies. For now, I would just remember that if you are buying a daylily, since you live in Maryland - if it says it reblooms - I would not count on it. Check with people in your area, or people on forums such as this one first, if rebloom is important to you. Or, buy plants from people such as Richard Norris, who is working hard on hybridizing plants that reliably rebloom in northern states.
Perhaps a better way to extend the season of bloom in the north is to try to select plants that bloom in the early season, mid season, and late season.