Cypripedium calceolus

Yellow Lady's Slipper Orchid

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Common Name: 

Yellow Lady's Slipper Orchid

Flower color: 

Foliage color: 

Green

Sun (From 0 to 5): 

Water (From 0 to 5): 

Maximum temperature: 

30°C

Minimum temperature: 

10°C

Maximum height: 

50 cm

Maximum width: 

50 cm

Yellow Lady's Slipper Orchid (Cypripedium calceolus) - Description

The Yellow Lady's Slipper Orchid is one of the most popular of Lady's Slipper Orchids. It is hardy enough that it can be grown outside in many temperate climates. The flower is a contrast of a brownish purple with a brilliantly yellow lower lip, which is the part of the flower that gives rise to its common name.

Yellow Lady's Slipper Orchid (Cypripedium calceolus) - Blooming

Bears flowers in summer, each with 3 spreading tepals and a slipper-shaped pouch. Tepals come in colors such as white, pink, red, or purple. The pouches can be yellow, white, pink, or dark purple.

Yellow Lady's Slipper Orchid (Cypripedium calceolus) - Growth

Grows in a sheltered site with partial shade. Lady's slipper orchids are able to withstand extreme cold. Plant Cypripedium sp. in a rock garden or woodland garden.

Yellow Lady's Slipper Orchid (Cypripedium calceolus) - Planting

Conduct division in early or midspring. Make sure that some of the soil from the root ball is planted with each of the divisions. This soil contains beneficial fungal mycorrhizae.

Yellow Lady's Slipper Orchid (Cypripedium calceolus) - Pest

Slugs are known to cause damage. Also prone to gray mold, rust, and leaf spot.

Yellow Lady's Slipper Orchid (Cypripedium calceolus) - Interesting facts

There are around 45 known species in the genus Cypripedium. The Eurasian species and North American species form two distinct groups. Eurasian species bear yellow and red flowes, while the North American orchids have only yellow flowers.

Yellow Lady's Slipper Orchid (Cypripedium calceolus) - Soil and irrigation

Does well with leafy, moist, fertile, neutral to acidic soil. C. calceolus prefers slightly alkaline soil. Provide regular water. Mulch in winter with leaf mold.

Cypripedium calceolus - Yellow Lady's Slipper Orchid - Photos