American and Australian humor must be far more hardcore than yours.
I should assume you guys are delicate and fragile.

How did a flower get elected? "It 'rose' to the occasion!
What do you call a flower that makes electricity? A power plant!
What do you call a clumsy flower? A Whoopsi-Daisy.
What did the bee say to the flower? You're pollen my leg!
Why did the chicken cross the toad? It was Good Friday.