The test daylilies all flowered even though some of them had been very small; I did not notice any rebloom on them in 2014. I did not have high expectations that they would be large enough to rebloom last year. This year it is still somewhat early to check for rebloom as some clumps have still not shown any scapes. However, two of the seven test cultivars have produced rebloom scapes - these were produced while the first set of scapes were still developing.
The recommended rate from one study was 400 ppm (parts per million) per week of ammonium nitrate (for potted plants).
