Nepenthes Bicalcarata Blackening Leaves: Too Wet and Too Cool

Nepenthes Bicalcarata Blackening Leaves: Too Wet and Too Cool

Reggie's N. bicalcarata (same terrarium as above) shows blackening on new and old leaves after 2 weeks. Same conditions: T5 lights, distilled water, Savage Garden mix.

Two Compounding Issues

1. Soil too wet + too much peat. Cut peat in half; ensure free drainage.
2. Temperature too low. N. bicalcarata is a true lowlander—needs ≥70°F day/night. Below 70°F causes decline.

Key Takeaway

N. bicalcarata demands heat (≥70°F) and airy, well-drained media. Cool temps + soggy peat = black leaves.