Nepenthes Temperature Drop: Required or Optional?

Grower runs highland/intermediate Nepenthes on reverse cycle (lights 9 PM–11 AM) for room darkness. Night temps now stable (no drop). Asked if drop is essential.

Species-Dependent

• Ultra-highland – Need night drop for best pitchering.
• Highland (e.g., N. sanguinea) – Often fine without.

Observation-Based Tuning

If plants pitcher well, keep schedule. If pitchering declines, restore night drop. Cultivation is microclimate tuning, not rigid rules.