OK, this is not the time for daffodil plantings (Narcissus, Amaryllidaceae), but you know how it is. You were reminded to do something about the daffs because they started to appear, if not in your garden then everywhere else.
So start planning now and come the fall you will know where you want to put the bulbs to best advantage, even though the memories of how the garden looked in Spring have faded.
This slightly zany silent video from Ireland nicely illustrates the best way to undertake daffodil plantings. Enjoy!