Why Refrigerators and Freezers Kill Carnivorous Plants: Proper Dormancy Methods

Never Put Nepenthes in a Refrigerator

Highland Nepenthes experience cool nights gradually as the sun sets. A fridge shocks them with instant cold, dry air, and darkness—often fatal. Most beginner-friendly highlanders (N. sanguinea, ventricosa, truncata, maxima, ramispina) tolerate 55–60°F nights without special cooling.

Sarracenia Dormancy: Fridge Method Exists But Timing Matters

Refrigerator dormancy (bare-root, fungicide, sealed bag) is a valid technique for winter only. In spring/summer, focus on:

• Outdoor full sun.
• Tray method with pure water.
• Building plant health for winter survival.

Ask for dormancy instructions in autumn. Healthy plants withstand winter; weak ones die regardless of method.