Boreal Bog Orchid
Platanthera dilatata
Last reviewed: July 2026
Light
part shade
Water
high
Size
8"–24" H × 4"–12" W
Bloom
Jun, Jul, Aug
Native to
AZ, CA, CO, ID and 19 more states
Pollinators
moths
Browse plants for this ecoregion
Boreal bog orchid is a delicate native wildflower that produces spikes of small, fragrant white flowers during summer months. This moisture-loving perennial requires consistently wet soil and partial shade.
In an HOA neighborhood
Boreal Bog Orchid takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.
- Requires bog-like conditions
- Dies back completely leaving bare spots
Wildlife value
The fragrant white flowers attract moths and other nocturnal pollinators during its summer blooming period.
Common questions
- How much sun does Boreal Bog Orchid need?
- Boreal Bog Orchid grows best in part shade conditions.
- When does Boreal Bog Orchid bloom?
- Boreal Bog Orchid blooms in June, July, and August.
- Where is Boreal Bog Orchid native?
- Boreal Bog Orchid (Platanthera dilatata) is native to AZ, CA, CO, ID and 19 more states, per the USDA PLANTS Database and regional native plant society lists.
- What pollinators does Boreal Bog Orchid attract?
- Boreal Bog Orchid draws moths.
- Is Boreal Bog Orchid HOA-friendly?
- Boreal Bog Orchid 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 Boreal Bog Orchid? 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