Cypripedium passerinum

Cypripedium passerinum

Scientific Classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Liliopsida
Order: Asparagales
Subfamily: Cypripedioideae
Tribe: Cypripedioideae
SubTribe: Cypripediinae
Genus: Cypripedium
Species: Cyp. passerinum
Binomial name
Cypripedium passerinum
Richardson in Franklin 1823

Cypripedium passerinum, is an slipper orchid found in North America.


Plants bloom from summer with a single flower.


Plants are found growing on slopes near swamps, on the edge of streams and gravel beds in the coniferous forest of Qubec, Ontario, Yukon, and from Manitoba to British Colombia provinces of Canada and the states of Montana and Alaska in the United States of America.


Grow plant in bright light and in cool temperature during the summer. Water regularly in the summer and keep mix moist but not wet. In the winter reduce watering. Plant should be grown in a mix with pH around 6 to 7. Plants can be potted in full gravel, full lava rock, or 25% perlite, 25% fine bark, and 50% gravel. To promote blooming increase the day length. Plant requires a long undisturbed dormancy during the winter.


Common Names: Sparrow's Egg Lady's Slipper

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