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Cypripedium parviflorum var. pubescens (Yellow Lady’s Slipper Orchid)

Yellow Lady's Slipper Orchid, Greater Yellow Lady's Slipper, Large Yellow Lady's Slipper, Cypripedium calceolus var. pubescens, Cypripedium luteum, Cypripedium pubescens, Cypripedium pubescens var. parviflorum

Cypripedium parviflorum var. pubescens, Yellow Lady's Slipper, Cypripedium pubescens, Cypripedium calceolus var. pubescens, Cypripedium luteum, Cypripedium pubescens, Yellow Flowers, Yellow Orchids
Cypripedium parviflorum var. pubescens, Yellow Lady's Slipper, Cypripedium pubescens, Cypripedium calceolus var. pubescens, Cypripedium luteum, Cypripedium pubescens, Yellow Flowers, Yellow Orchids

Cypripedium parviflorum var. pubescens (Yellow Lady’s Slipper Orchid) is a hardy orchid boasting showy flowers with a large, deep lemon-yellow pouch covered with red spots in the throat, topped with green and chocolate-brown petals that twist outwards in spirals. Blooming from late spring to midsummer (depending on geographic locations), the sophisticated flowers are borne at the top of the stems, usually singly, but occasionally in pairs. The stems bear between 3-6 pointed, oval, pleated leaves that have fine hairs and prominent veins. Big and bold, this plant can form a showy clump of 20 or more stems, however, plants with 3-5 stems are closer to the norm. Easy to grow, Yellow Lady’s Slipper is a great deal tougher than it appears. This is the most common wild orchid in the U.S. and is found in almost every state. 

  • Grows up to 18-24 in. tall (45-60 cm) and 12-18 in. wide (30-45 cm).
  • Thrives in part shade in moist, fertile, humus-rich, well-drained soils. Provide an annual winter mulch of leaf mold.
  • Excellent choice for borders, city gardens, cottage gardens, and containers.
  • Propagate by division in early or mid-spring and replant immediately. Some soil from the root ball, which contains beneficial fungi, should be planted with each division.
  • No serious pest or disease issues. Keep an eye out for slugs and gray molds.
  • Native from Subarctic America to the USA.

 

Requirements

Hardiness 3 - 7
Heat Zones 1 - 7
Plant Type Orchids, Perennials
Plant Family Orchidaceae
Genus Cypripedium
Exposure Partial Sun
Season of Interest Spring (Late)
Summer (Early, Mid)
Height 1' - 2'
(30cm - 60cm)
Spread 1' - 2'
(30cm - 60cm)
Spacing 12" - 18"
(30cm - 50cm)
Maintenance Low
Water Needs Average
Soil Type Loam
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy
Native Plants United States, Maine, New York, New Jersey, New Hampshire, Maryland, Massachusetts, Pennsylvania, Delaware, Connecticut, Vermont, Rhode Island, Northeast, California, Alaska, Rocky Mountains, Southwest, Southeast, Pacific Northwest, Midwest, Indiana, Iowa, Kansas, Illinois, Missouri, South Dakota, Nebraska, Michigan, Wisconsin, North Dakota, Ohio, Minnesota, Washington, Mississippi, North Carolina, South Carolina, Virginia, West Virginia, Alabama, Arkansas, Georgia, Kentucky, Tennessee, New Mexico, Arizona, Texas, Utah, Wyoming, Colorado, Montana
Garden Uses Beds And Borders, Patio And Containers
Garden Styles Informal and Cottage, City and Courtyard
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Alternative Plants to Consider

Cypripedium macranthos (Lady’s Slipper Orchid)
Cypripedium Monto gx (Lady’s Slipper Orchid)
Cypripedium Hank Small gx (Lady’s Slipper Orchid)
Cypripedium tibeticum (Tibetan Lady’s Slipper Orchid)
Cypripedium x ventricosum (Lady’s Slipper Orchid)
Cypripedium guttatum (Spotted Lady’s Slipper Orchid)

Recommended Companion Plants

Matteuccia struthiopteris (Ostrich Fern)
Actaea simplex (Atropurpurea Group) ‘Black Negligee’ (Baneberry)
Athyrium niponicum var. pictum (Painted Lady Fern)
Epimedium grandiflorum ‘Lilafee’ (Barrenwort)

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Cypripedium (Lady Slipper Orchid)
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
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Requirements

Hardiness 3 - 7
Heat Zones 1 - 7
Plant Type Orchids, Perennials
Plant Family Orchidaceae
Genus Cypripedium
Exposure Partial Sun
Season of Interest Spring (Late)
Summer (Early, Mid)
Height 1' - 2'
(30cm - 60cm)
Spread 1' - 2'
(30cm - 60cm)
Spacing 12" - 18"
(30cm - 50cm)
Maintenance Low
Water Needs Average
Soil Type Loam
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy
Native Plants United States, Maine, New York, New Jersey, New Hampshire, Maryland, Massachusetts, Pennsylvania, Delaware, Connecticut, Vermont, Rhode Island, Northeast, California, Alaska, Rocky Mountains, Southwest, Southeast, Pacific Northwest, Midwest, Indiana, Iowa, Kansas, Illinois, Missouri, South Dakota, Nebraska, Michigan, Wisconsin, North Dakota, Ohio, Minnesota, Washington, Mississippi, North Carolina, South Carolina, Virginia, West Virginia, Alabama, Arkansas, Georgia, Kentucky, Tennessee, New Mexico, Arizona, Texas, Utah, Wyoming, Colorado, Montana
Garden Uses Beds And Borders, Patio And Containers
Garden Styles Informal and Cottage, City and Courtyard
How Many Plants
Do I Need?
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