Cypripedium californicum is a Cypripedium species found in Western United States
Plants bloom in the summer. Flowers are 3.75 cm wide.
It often grows in very large clumps and each stem can bear up to 12 flowers. It can grow to be up to over a meter in height and has alternate, plicate leaves the length of the stem. The petals and sepals tend to be greenish-brown while the small pouch is pure white with occasional pink spots.
Plants are found in Northern California and Oregon, United States in wet marshy areas near streams with Darlingtonia californica growing under trees at elevations of 0 to 1500 meters.
Grow cool. Keep in shade to partial sun. Water regularly with distilled or rain water. Pot in a well drain mix that keeps plants moist but not wet. Plants can be potted in 50% peat and 50% sand. Plants also can be potted in half perlite and half pumice. Pine needles can be used to keep humidity high.
USDA zones 8a to 9a.
Common Names: California Lady's Slipper