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Alaska Orchid

Platanthera unalascensis

Last reviewed: June 2026

Alaska Orchid (Platanthera unalascensis)
Photo: (c) Matt Berger, some rights reserved (CC BY), uploaded by Matt Berger

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

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.

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.

Does Alaska Orchid fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.