Rita,
I have over 20K seedlings so no, not every dead leaf will be removed! In fact I leave them as I want to see which ones DON'T have dead leaves as they are better items to be named.
In my yard the dwarf irises will be in peak bloom so there will be lots to see besides the semps. I have 3.5 acres and about 2 is in cultivation. That's a lot for any one person to weed!
Kevin
