"Desecrate garden" is an objective in the quest The Bloody Harvest in T.K. Baha's Bloody Harvest DLC
Walkthrough[edit]
Head back down from Hallowed Hollow Farms to The Pumpkin Patch. Go on over to the marked spigot. Once there Zombie T.K. Baha will tell you what to do to draw out the Pumpkin Kingpin.
All you need to do is interact with the spigot and the Pumpkin Patch will be flooded with Blood. This will draw out the Pumpkin Kingpin.
