Cypripedium acaule (Pink Ladys Slipper Orchid)

Long-lived (up to 20 years), Cypripedium acaule (Pink Lady’s Slipper Orchid) is a hardy orchid boasting deep rose, light pink or white flowers with darker pink venation, 2 in. across (5 cm). They feature an inflated pouch backed by lance-shaped, greenish-brown sepals and petals that spread out. Blooming from mid-spring to mid-summer (depending on geographic locations), the sophisticated flowers are borne singly at the top of erect leafless stalks.

Long-lived (up to 20 years), Cypripedium acaule (Pink Lady's Slipper Orchid) is a hardy orchid boasting deep rose, light pink or white flowers with darker pink venation, 2 in. across (5 cm). They feature an inflated pouch backed by lance-shaped, greenish-brown sepals and petals that spread out. Blooming from mid-spring to mid-summer (depending on geographic locations), the sophisticated flowers are borne singly at the top of erect leafless stalks. They rise well above a basal set of 2 opposite dark green leaves with conspicuous parallel veins. Both exotic and beautiful, this woodland wildflower takes several years to go from seed to mature plants. It should not be picked in the wild, propagates poorly, and is very difficult to grow in wildflower gardens.

  • Grows up to 12-18 in. tall and wide (30-45 cm).
  • Thrives in part shade in moist, acidic, well-drained soils
  • No serious pest or disease issues. Very difficult to transplant.
  • The entire plant is hairy and has been known to cause dermatitis on those trying to dig it from the wild.
  • Native to eastern North America.

Requirements

Hardiness 3
– 7

Heat Zones 1
– 7

Plant Type Orchids, Perennials
Plant Family Cypripedium – Laddy Slippers
Exposure Partial Sun
Season of Interest Spring (Mid,Late)Summer (Early,Mid)
Height 1'
– 2'
(30cm
– 60cm)
Spread 1'
– 2'
(30cm
– 60cm)
Spacing 24″ (60cm)
Water Needs Low, Average
Maintenance Low
Soil Type Clay, Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Showy
Native Plants United States, Midwest, Illinois, Indiana, Michigan, Minnesota, Ohio, Wisconsin, Northeast, Connecticut, Delaware, Maine, Massachusetts, Maryland, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Southeast, Alabama, Georgia, Kentucky, North Carolina, South Carolina, Tennessee, Virginia, West Virginia
Garden Styles Informal and Cottage, Prairie and Meadow