A blue lily is there because there is a boy with a large head that needs a blue lily to decrease his head size.
you get the top from the boy with a big after you give him a blue lily
You can buy the Flower Power item in the Poptropica store. There is also a blue lily in Wild West Island.
in the wild west
Appropriately, at Blue Nile Falls (the left side nearest the plane). You can swap it for a desert TURBAN back at Nabooti. *Note that the flower used on Wild West Island is a "blue tulip." (see related question)
look up poptropica wild west cheats ;)
The blue tulip is for the guy w/ the large head.
Under ground
in the Canary Mine in Rock Ridge
In a cave on rock ridge.
I think you get the stuff that you see.
finish the mine cart
Wild West C-O-W--Boys of Moo Mesa - 1992 Thoroughly Moodern Lily 1-13 was released on: USA: 6 December 1992