Fertilizing Nepenthes with Coffee: Proceed with Caution

Grower asked about using American medium-roast coffee on N. glabrata.

Method (from responder)

Tiny piece of caffeine-free coffee (1 cm) in 2L rainwater. Mist leaves/pitchers 2–3 sprays max. Don't overdo.

Sarracenia Northwest's Stance

Tried coffee—unimpressive to no results. Heard of winter problems. Organic fertilizers risk killing sundews/VFTs. CP media lacks bacteria to break down organics. Only experiment on expendable plants.