You deadhead yarrow plants by cutting off the faded flower blossom.
Deadhead Miles - 1973 is rated/received certificates of: USA:R
No.
tulips (two lips...)
If you mean "Holland tulips", it means tulips from Holland.
There are no specific collective noun for tulips. I have seen suggested, an explosion of tulips and a tiptoe of tulips. However, any noun suitable for the situation can be used, for example, a field of tulips, a bouquet of tulips, a bunch of tulips, etc.
If you are saying that "1 in 4" of the tulips are red, the answer would be 4 of the tulips are red.
No, tulips are multicellular organisms.
Tulips
Tulips are angiosperms.
You should deadhead your peonies back after the bloom has gone by. Deadhead back to the leaf of that stem. Let the green stems and leaves die back naturally. We cut ours back to the ground in the fall.
Tulips are bulbs