North America Native Plant

Bluntleaved Orchid

Botanical name: Platanthera obtusata obtusata

USDA symbol: PLOBO3

Life cycle: perennial

Habit: forb

Native status: Native to Alaska âš˜ Native to Canada âš˜ Native to the lower 48 states âš˜ Native to St. Pierre and Miquelon  

Synonyms: Habenaria obtusata (Banks ex Pursh) Richardson (HAOB2)  âš˜  Habenaria obtusata (Banks ex Pursh) Richardson var. collectanea Fernald (HAOBC)  âš˜  Lysiella obtusata (Banks ex Pursh) Rydb. (LYOB2)   

Bluntleaved Orchid: A Delicate Northern Beauty That’s Better Admired Than Grown If you’ve ever stumbled across a delicate white orchid blooming in a northern bog or woodland and wondered what it was, you might have encountered the bluntleaved orchid (Platanthera obtusata obtusata). This charming native wildflower is one of those ...

Bluntleaved Orchid: A Delicate Northern Beauty That’s Better Admired Than Grown

If you’ve ever stumbled across a delicate white orchid blooming in a northern bog or woodland and wondered what it was, you might have encountered the bluntleaved orchid (Platanthera obtusata obtusata). This charming native wildflower is one of those plants that makes you stop in your tracks—but also one that’s probably better left in the wild than brought into your garden.

Meet the Bluntleaved Orchid

The bluntleaved orchid is a perennial forb that belongs to the fascinating world of native orchids. Unlike its showier cousins you might find at the garden center, this little beauty is all about subtle elegance. You’ll recognize it by its single, broad basal leaf (hence the bluntleaved name) and its slender spike of small, greenish-white to pure white flowers that bloom in summer.

Botanists have given this plant a few different names over the years, including Habenaria obtusata and Lysiella obtusata, but Platanthera obtusata obtusata is the name that stuck.

Where You’ll Find This Northern Gem

This orchid is a true northerner, calling home to an impressive range across the cooler regions of North America. You can find it throughout Canada—from British Columbia to Newfoundland and Labrador—as well as Alaska and the northern territories. In the United States, it prefers the northern states including Maine, Vermont, New Hampshire, Massachusetts, New York, Michigan, Wisconsin, Minnesota, Montana, Idaho, Oregon, Washington, Utah, Colorado, and Wyoming.

The Appeal (And the Challenge)

Let’s be honest: the bluntleaved orchid isn’t going to wow you with bold colors or dramatic size. Its appeal lies in its quiet sophistication and the thrill of spotting a native orchid in the wild. The small flowers, usually less than half an inch across, have a subtle beauty that orchid enthusiasts absolutely adore.

But here’s where things get tricky for gardeners. This orchid is what we call mycorrhizal dependent, which means it relies on specific soil fungi to survive. These fungi form a partnership with the orchid’s roots, helping it absorb nutrients from the soil. Without the right fungal partners, the orchid simply can’t thrive.

Growing Conditions: What This Orchid Demands

If you’re still determined to try growing the bluntleaved orchid, here’s what you need to know about its preferred conditions:

  • Cool, consistently moist soil that’s acidic to neutral
  • Partial shade to dappled sunlight—think woodland conditions
  • Well-draining but moisture-retentive soil, often found in bogs or wet meadows
  • Cold winter temperatures (hardy in USDA zones 2-6)
  • The presence of specific mycorrhizal fungi in the soil

The Reality Check: Why This Orchid Belongs in the Wild

Here’s the truth that every responsible gardener should know: native orchids like the bluntleaved orchid are notoriously difficult to cultivate successfully. Even experienced orchid growers often struggle with terrestrial native species because recreating their complex natural relationships in a garden setting is extremely challenging.

The bluntleaved orchid has evolved over thousands of years to depend on specific soil conditions, fungal partnerships, and environmental cues that are nearly impossible to replicate in cultivation. Most attempts to grow wild orchids in gardens end in disappointment.

A Better Approach: Appreciation and Conservation

Instead of trying to grow the bluntleaved orchid in your garden, consider these alternatives:

  • Learn to identify and appreciate it in its natural habitat
  • Support local conservation efforts that protect native orchid populations
  • Create habitat for pollinators that visit native orchids, such as small moths
  • Choose easier-to-grow native plants that provide similar woodland appeal

Pollinator and Wildlife Value

While you might not want to attempt growing this orchid yourself, it’s worth understanding its ecological role. The bluntleaved orchid attracts small moths and other nocturnal pollinators with its subtle fragrance. These relationships have evolved over millennia and are part of what makes intact northern ecosystems so special.

The Bottom Line

The bluntleaved orchid is undoubtedly a treasure of our northern forests and wetlands. Its presence indicates a healthy, intact ecosystem, and discovering one in the wild is always a special moment. However, this is one native plant that’s best admired from a respectful distance rather than brought into cultivation.

If you’re drawn to native orchids, spend your gardening energy on creating habitat that supports them in the wild, and save your planting efforts for native species that actually want to be in your garden. Trust us—both you and the orchids will be happier that way!

Bluntleaved Orchid

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

Platanthera Rich. - fringed orchid

Species

Platanthera obtusata (Banks ex Pursh) Lindl. - bluntleaved orchid

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