Courage the Cowardly Dog - 1999 Feast of the Bullfrogs Tulip's Worm 3-7 was released on:
USA: 28 June 2002
Red Tulips A Story About Forgetting - 2012 was released on: USA: 16 April 2012
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.
Tulips are bulbs
Tulips are a spring bulb.
Tulips Tulips
Extreme Dinosaurs - 1997 Tiptoe Through the Tulips 1-37 was released on: USA: 21 October 1997