The player can get this quest on a signpost in Farty Fen in Hearthwind Vale.
Task[]
| “ | I've found an odd collection of signs in the Farty Fen banning flowers... but maybe it'll stop that horrible smell around here? | „ |
You need to bring 8x
Moonsilk Flowers to the sign. The flowers are abundant in the Sunderwind Wilds.
Gather 8xMoonsilk Flowers and interact with the signpost again. You will get the sprite 
Whiffy. This will complete the quest.