How to Prune daylily 'Burning Daylight'?
Cut back flower stems after flowering has finished. Remove dead foliage as required

daylily 'Burning Daylight' · Hemerocallis 'Burning Daylight'
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 for details
Cut back flower stems after flowering has finished. Remove dead foliage as required