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Species library › Cypripedium › Cypripedium andrewsii
Orchids Well documented

Cypripedium andrewsii

Andrews' lady's slipper is the natural hybrid between the small white lady's slipper (Cypripedium candidum) and the yellow lady's slipper (C. parviflorum), found where the two meet in calcareous wet prairies and fens of the upper Midwest and Great Lakes. It is a fully winter-hardy terrestrial orchid that needs a cold, dark winter dormancy and a constantly moist, limy, airy soil.

Cypripedium andrewsii
Photo: Allefant, CC BY-SA 4.0, via Wikimedia Commons
At home, aim for
Day Cool-growingTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Ordinary room humidityBand in Plantistry
Light Bright, filtered lightDLI and PPFD in Plantistry
Expects a seasonal restGrows in the ground

Where it grows wild

Wet calcareous prairies, fens and sedge meadows, and their brushy margins, where the parents grow together; usually in sun or light shade among grasses and sedges.

Few records carry an elevation; the range is lowland (roughly 150–450 m).

IllinoisIndianaIowaKentuckyMichiganMinnesotaMissouriNew YorkNorth DakotaOhioWisconsinOntarioManitoba

🔒 Growing it like that

The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:

✓ Day and night temperature targets, and the limits it tolerates
✓ Humidity band, and how to hold it
✓ Light as DLI and PPFD for a grow light
✓ Wet and dry seasons, and whether to rest it
✓ Substrate and airflow
✓ A step-by-step setup to grow it like the wild

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More Cypripedium

Cypripedium candidum Cypripedium arietinum Cypripedium acaule Cypripedium parviflorum Cypripedium reginae Cypripedium calceolus Cypripedium formosanum Cypripedium macranthos Cypripedium passerinum Cypripedium tibeticum Cypripedium guttatum Cypripedium kentuckiense All 62 →

Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app. Photo from Wikimedia Commons, used under its CC BY-SA 4.0 licence, unmodified.