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Pacific Coralroot

Corallorhiza mertensiana

Last reviewed: June 2026

Pacific Coralroot (Corallorhiza mertensiana)
Photo: (c) Tom Hilton, some rights reserved (CC BY), uploaded by Tom Hilton

Light

part shade

Water

low

Size

4"–12" H × 2"–6" W

Bloom

Jun, Jul, Aug

Native to

CA, ID, MT, OR and 2 more states

Pollinators

bees, flies

Browse plants for this ecoregion

Pacific coralroot is a unique native orchid that grows without green leaves, appearing as reddish-brown stems with small coral-colored flowers. This fascinating parasitic plant obtains nutrients through underground fungal partnerships rather than photosynthesis. It emerges unpredictably in summer, creating delicate spikes in shaded woodland areas.

In an HOA neighborhood

Pacific Coralroot takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • Appears leafless and can look like dead stems
  • Emerges unpredictably and may not appear every year
  • Very unconventional appearance for typical landscaping

Wildlife value

The small orchid flowers attract native bees and flies during summer blooming periods. As a native species, it contributes to local ecosystem diversity.

Common questions

How much sun does Pacific Coralroot need?
Pacific Coralroot grows best in part shade conditions.
When does Pacific Coralroot bloom?
Pacific Coralroot blooms in June, July, and August.
Where is Pacific Coralroot native?
Pacific Coralroot (Corallorhiza mertensiana) is native to CA, ID, MT, OR and 2 more states, per the USDA PLANTS Database and regional native plant society lists.
What pollinators does Pacific Coralroot attract?
Pacific Coralroot draws bees and flies.
Is Pacific Coralroot HOA-friendly?
Pacific Coralroot takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Ready to grow Pacific Coralroot? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Not sure where to start? Take the 2-minute yard quiz