How to Fertilize daylily 'Benchmark'?
Use slow-release fertilizer twice yearly in early spring and mid-summer

daylily 'Benchmark' · Hemerocallis 'Benchmark'
Grow in fertile, moist but well-drained soil preferably in full sun. Flowering is likely to be poor in shadier situations. Tolerant of heavy clay and poorer soils. May need watering in spring to early summer in dry conditions to ensure flowering. See hemerocallis cultivation or daylily cultivation.
Use slow-release fertilizer twice yearly in early spring and mid-summer