Early Cold Snap in Illinois: Not a Dormancy Trigger for Temperate Carnivorous Plants

An Illinois grower (Zone 5) had a 35°F night in September. Worried temperate plants in a 3-ft pot (too large to move) will enter early dormancy and wake in mid-winter. Asks how to keep them at 65°F until "proper" dormancy time.

Single Cold Night ≠ Dormancy Trigger

Dormancy requires gradual decrease in night temps and day length. One cold night is inconsequential — all local plants (trees, gardens) experience it and follow natural cycles.

Natural Timing

Plants know when to dormancy. No intervention needed. Start winter prep late October to mid-November. Watch monthly podcasts: CobraPlant.com/videos

Don't heat plants; let nature guide them.