Phragmipedium Frozen at 30°F: Likely Fatal

Phragmipediums Hate Cold—Below 45°F Is Dangerous

A Phragmipedium (slipper orchid) exposed to <30°F via a broken window in Minnesota: leaves brown, wilting.

Phragmipediums tolerate cool but not freezing. Below 45°F causes irreversible damage. This plant is almost certainly dead.

Phrags need 50–80°F.
Never near drafty windows in winter.
If you must keep cool-growing orchids in cold climates, use a heated grow space.

Sorry for the loss. Choose warmer-tolerant genera for risky spots.

Orchids: Saving Cold-Exposed Phalaenopsis: Repotting, Root Assessment & Recovery; Phalaenopsis Leaf Loss: Crown Rot Emergency; Phalaenopsis from Glass Vase: Root Rot, Keiki Found, Repot & Recover; White Sand-Like Material on Orchid Roots: Mealybugs?; Orchid Frozen 2 Weeks: Slim Chance Rescue Protocol; Black Stem Discoloration on Phalaenopsis: Fungal Infection from Evening Watering; Why Orchids Need Open Media: Root Aeration vs. Seedling Flask Culture; Can You Cut Orchid Roots? It Depends on the Orchid Type; Office Phalaenopsis: Light, Night Lights, Weekend Care; The Enigmatic Black Orchid: Biology, Diversity, and Conservation

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