Zip Boom Bah has been here starting its fifth year. In its fourth year, it really came on and produced about four sets of bloom. Of course, last year was an amazing year for daylilies, but this year it has put up about 12 scapes already and is doing just fine, even though we have had really strange weather that I think has adversely affected nearly all our DLS--short scapes, blooming out quickly, etc. Zip just shakes it off and keeps on going. The Plant Data Base lists the scapes as 28", but ours has never made that yet, probably more like 22-24", but that's okay with us. We really enjoy this daylily.