Cranberries grow best in acidic conditions, as shown by the conditions inside an antique cranberry harvester:
Admittedly, it’s been sitting untended for many years, but the worst corrosion formed along the midline of the machine, eating the conveyor housing, drive shafts, and support struts.
I managed to go all this time without realizing cranberry plants are evergreens.
The Smell of Molten Projects in the Morning 