North America Native Plant

White Lady’s Slipper

Botanical name: Cypripedium candidum

USDA symbol: CYCA5

Life cycle: perennial

Habit: forb

Native status: Native to Canada âš˜ Native to the lower 48 states  

White Lady’s Slipper: A Rare Native Orchid Worth Protecting If you’ve ever stumbled upon a white lady’s slipper (Cypripedium candidum) in the wild, consider yourself incredibly lucky. This enchanting native orchid is one of North America’s most elusive botanical treasures, and there’s a very good reason why you won’t find ...

Rare plant alert!

Region: New Jersey

Status: S1: Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ New Jersey Highlands region ⚘ New Jersey Pinelands region ⚘ Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ Endangered: In danger of extinction throughout all or a significant portion of its range. ⚘

Region: New Jersey

White Lady’s Slipper: A Rare Native Orchid Worth Protecting

If you’ve ever stumbled upon a white lady’s slipper (Cypripedium candidum) in the wild, consider yourself incredibly lucky. This enchanting native orchid is one of North America’s most elusive botanical treasures, and there’s a very good reason why you won’t find it at your local garden center.

What Makes White Lady’s Slipper Special

The white lady’s slipper is a perennial forb that produces one of nature’s most distinctive flowers. Picture a delicate white pouch – that’s the slipper – topped with yellow-green sepals and petals that twist gracefully above it. Standing just 6-12 inches tall, this modest orchid packs a serious visual punch when it blooms in late spring to early summer.

Unlike woody plants, this native orchid lacks significant woody tissue and maintains its life force through underground structures that weather each winter, emerging fresh each spring.

Where White Lady’s Slipper Calls Home

This remarkable orchid is native to both Canada and the lower 48 United States, with populations scattered across Manitoba, Ontario, Saskatchewan, and numerous U.S. states including Alabama, Illinois, Indiana, Iowa, Kentucky, Maryland, Michigan, Minnesota, Missouri, Nebraska, New Jersey, New York, North Dakota, Ohio, Pennsylvania, South Dakota, Virginia, and Wisconsin.

A Plant in Peril

Here’s where things get serious: white lady’s slipper is considered rare throughout much of its range. In Alabama, it holds an S1 rarity status, while New Jersey lists it as Endangered with additional Pinelands and Highlands protections. This isn’t a plant you can casually add to your garden wish list.

The Wetland Connection

Across all regions where it grows – from the Atlantic and Gulf Coastal Plains to the Great Plains and Midwest – white lady’s slipper holds Obligate Wetland status. This means it almost always occurs in wetlands, requiring consistently moist to wet conditions to survive. It’s not just picky about water; it’s completely dependent on it.

Should You Try to Grow White Lady’s Slipper?

The short answer? Probably not, unless you’re a serious orchid specialist with extensive experience. Here’s why:

  • It requires specific mycorrhizal fungal partnerships to survive
  • Soil chemistry must be just right (typically alkaline)
  • Consistent moisture levels are critical
  • It’s adapted to very specific microclimates
  • Success rates for home cultivation are extremely low

The Responsible Approach

If you’re absolutely determined to attempt growing this rare beauty, please ensure you source plants only from reputable native plant nurseries that propagate their own stock – never from wild-collected plants. Better yet, consider supporting habitat conservation efforts or visiting botanical gardens where you can appreciate these orchids without contributing to their decline.

Pollinator Benefits and Wildlife Value

White lady’s slipper has evolved a fascinating pollination strategy. Small bees and flies are temporarily trapped inside the pouch-like flower, forcing them to crawl out through a specific opening that ensures they pick up or deposit pollen. It’s a clever system that’s been working for thousands of years.

Growing Conditions (For the Brave and Experienced)

If you’re still reading and considering the challenge, here’s what white lady’s slipper demands:

  • USDA Hardiness Zones 2-6
  • Partial shade to filtered sunlight
  • Consistently moist, alkaline soil
  • Cool, humid conditions
  • Specific mycorrhizal fungi in the soil
  • Minimal disturbance once established

The Bottom Line

White lady’s slipper is a plant to admire, protect, and celebrate – but probably not to grow in your backyard. Its rarity status and extreme growing requirements make it better suited for conservation efforts and specialized botanical collections. Instead of attempting to cultivate this challenging orchid, consider supporting habitat preservation or growing other native plants that provide similar aesthetic appeal without the conservation concerns.

Sometimes the most responsible thing we can do as gardeners is appreciate nature’s treasures where they belong – in their native habitats, thriving in the wild for future generations to discover and wonder at.

White Lady’s Slipper

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Liliidae

Order

Orchidales

Family

Orchidaceae Juss. - Orchid family

Genus

Cypripedium L. - lady's slipper

Species

Cypripedium candidum Muhl. ex Willd. - white lady's slipper

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA