Overwintering Sarracenia and Darlingtonia in a Cold Frame (Zone 5b)

Derick in zone 5b asks if cold frame on south side of house/greenhouse is good for overwintering Sarracenia and Darlingtonia. Winter temps sometimes below 10°F. Alternative: unheated room in home.

Expert Recommendation: Unheated Room Better for Few Pots

Jeff Dallas: Cold frame in sun causes huge temperature swings (bad). Less sunny location in frame better. For a few pots, unheated room (40-50°F) is superior. Use fungicide spray. For larger collections, outdoor overwintering with cold frame + mulch. Water when above freezing. Fungicide mandatory. Remove all Sarracenia foliage except S. psittacina and S. purpurea ssp. purpurea; only dead leaves on Darlingtonia.

E-book has extensive chapter: link.

Good Growing!

Jeff Dallas
Sarracenia Northwest
www.cobraplant.com