Hi Sarah,
You just happened to ask 3 questions I know the answer to -- and that doesn't happen too often!
The Surprise Lilies are a special kind of
plant (and it has a botanical description, I just forget it) that has a 3 or 4-year cycle. I forget exactly what it is, but basically this is the cycle: A single bulb blooms year one (1). Then it rests (2) Then it splits & it grows (3) and then it blooms (1) Maybe year 3 is actually year 3 & 4, but the point is that at any given time, you will have 3 or 4 times as many big bulbs in the ground as you see
flowers for. Another bulb that has this cycle is the Cardiocrinum.
Surprise Lilies (and by this I mean the pink ones)will go down a about a foot no matter how shallowly you
plant them by use of contractile roots.
Yes, those look like tulips... I would mulch with any kind of animal manure I could find and leave them in the ground. Baby tulips like those are heavy feeders...the manure will take care of them this fall, but in the
spring I would hit them again a couple of times with whatever I had on hand -- 10-10-10 for example.
The daylilies will be fine (this is a prediction I am making because oddly enough, I got some old shriveled cast off daylilies this year myself and they are showing green growth.) And usually daylilies are dug the 2nd half of August (in your area) because they go dormant or at least slow way down then before their second flush of growth in fall (Sept.)