Alaska Orchid
Platanthera unalascensis
Last reviewed: June 2026
Light
part shade
Water
medium
Size
4"–24" H × 2"–8" W
Bloom
Jun, Jul, Aug
Native to
CA, CO, ID, MI and 8 more states
Pollinators
moths
Browse plants for this ecoregion
Rein orchid is a delicate native wildflower with slender spikes of small white to greenish flowers. This orchid produces narrow leaves and grows in partially shaded, moist conditions during summer months.
In an HOA neighborhood
Alaska 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.
Works well in: backyard only.
- Extremely difficult to establish and maintain
- May disappear entirely for years
- Looks like a weed to most people
Wildlife value
Provides nectar for moths and other nighttime pollinators during its summer blooming period.
Common questions
- How much sun does Alaska Orchid need?
- Alaska Orchid grows best in part shade conditions.
- When does Alaska Orchid bloom?
- Alaska Orchid blooms in June, July, and August.
- Where is Alaska Orchid native?
- Alaska Orchid (Platanthera unalascensis) is native to CA, CO, ID, MI and 8 more states, per the USDA PLANTS Database and regional native plant society lists.
- What pollinators does Alaska Orchid attract?
- Alaska Orchid draws moths.
- Is Alaska Orchid HOA-friendly?
- Alaska 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 Alaska 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