Coffee as Fertilizer for Carnivorous Plants: Skeptical View

Grower asked if American medium-roast coffee grounds can replace black coffee for fertilizing.

Sarracenia Northwest's Experience

• Tried coffee—unimpressive/no results.
• Heard of winter problems.
• Organic fertilizer risks killing sundews/VFTs (CP media lacks decomposers).
• Only experiment on cheap, expendable plants.

Call for Research

Controlled experiments needed. Coffee grounds work in vegetable gardens (soil bacteria break them down), not in inert CP media.