Overwintering Venus Flytrap and Pinguicula primuliflora in a Cool Sunroom

A grower in Virginia kept a Venus flytrap and P. primuliflora in an unheated sunroom (night 30s°F, day 45–50°F) after failing to acclimate them outdoors in fall.

Assessment

Conditions are nearly ideal for dormancy. Growth has slowed appropriately.

Special Care for P. primuliflora

• Prone to rot; keep soil just damp, not wet.
• Repot into a larger pot with vermiculite added to the mix—helps moderate moisture and suppress mold.
• Clip dead foliage promptly; mold starts there.

General

• Spray both with sulfur fungicide.
• Monitor for mold throughout winter.

Acclimate to outdoors in spring after frost danger passes.