Venus Flytrap Dormancy: Window Sill vs. Refrigerator Method

A grower has four VFTs showing partial dormancy signs (some tiny new growth, white bulbs) on a windowsill and wonders whether to move them to the refrigerator.

Assessing Dormancy Readiness

By late November/early December, VFTs should be fully ready for deep dormancy. Key indicators:

• Short, wide petioles (ground-hugging leaves)
• Slowed growth
• Die-back of large summer traps

Two Valid Approaches

Option 1: Cool Windowsill (Passive)

• Night temperatures dropping to 50-60°F (10-15°C)
• Natural photoperiod reduction
• Less control but more natural

Option 2: Refrigerator (Active)

• Consistent 35-40°F (2-4°C)
• Complete darkness
• Requires: unpot, rinse roots, fungicide treatment, wrap in damp sphagnum, bag loosely
• Check monthly for mold

Critical Success Factors (Both Methods)

• Soil barely moist—never wet
• Fungicide application before storage
• No fertilization
• Return to bright light and warmth in spring

Recommendation

If your windowsill gets genuinely cold (40s°F at night), it's simpler and equally effective. Use the fridge only if indoor temperatures stay too warm for proper dormancy.