You can plant spring bulbs late but in most cases they will not form enough roots to enable them to flower the next year however after that they should be OK.
A friend of mine once left a half bushel bow of show daffs unplanted but when he saw them growing out the sides of the box he put soil to keep them moist. They took 2 years to recover but they were Ok. Do remember true bulbs contain the flower embryo and leaves so they have to flower whether planted or not. I have grown show daffs since 1960.