His map half, along with one that you find at the bank (once you beat the Train Robbery) leads you to the gang's hideout. The elixirs you buy (Transparency Tonic, Concentration Carbonate) will let you beat the outlaws in a shootout.
The blue tulip is for the guy w/ the large head.
in the wild west
go up the sleep
Dos Cactos
Coming out of the mine at Rocky Ridge.
you give it to the boy at diamond plains to cure him
look up poptropica wild west cheats ;)
you find the special flower it is the blue tulip. i hope this helps
there is no red tulip but the blue tulip is in the cave at rock ridge.
it is in nabooti island
you find it in the mine that says "MINE not yours!" you go on the cart and get to the end. hope that helped!
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)