North America Native Plant

Cusick’s Frasera

Botanical name: Frasera albicaulis var. cusickii

USDA symbol: FRALC2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Frasera caerulea Mulford (FRCA15)  âš˜  Frasera coerulea Mulford, orth. var. (FRCO6)  âš˜  Swertia albicaulis (Douglas ex Griseb.) Kuntze var. cusickii (A. Gray) J. Pringle (SWALC2)  âš˜  Swertia cusickii (A. Gray) H. St. John (SWCU)  âš˜  Swertia nitida (Benth.) Jeps. ssp. cusickii (A. Gray) Abrams (SWNIC)   

Cusick’s Frasera: A Rare Pacific Northwest Native Worth Growing Responsibly Meet Cusick’s frasera (Frasera albicaulis var. cusickii), a striking native wildflower that’s like the unsung hero of Pacific Northwest gardens. This remarkable perennial forb might not be on every gardener’s radar, but it deserves serious consideration for those looking to ...

Rare plant alert!

Region: Conservation status by state

Status: S5T3T4: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals. ⚘ Subspecies or varieties is apparently secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the region or more than 10,000 individuals ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Cusick’s Frasera: A Rare Pacific Northwest Native Worth Growing Responsibly

Meet Cusick’s frasera (Frasera albicaulis var. cusickii), a striking native wildflower that’s like the unsung hero of Pacific Northwest gardens. This remarkable perennial forb might not be on every gardener’s radar, but it deserves serious consideration for those looking to add authentic regional character to their landscapes.

What Makes Cusick’s Frasera Special

This native beauty is a true Pacific Northwest original, calling the mountainous regions of Idaho and Oregon home. As a perennial forb, Cusick’s frasera returns year after year, developing into an impressive specimen that can create dramatic vertical interest in your garden design.

The plant produces tall, architectural flowering spikes adorned with delicate white to pale blue flowers that seem to dance in mountain breezes. It’s the kind of plant that makes visitors stop and ask, What is that gorgeous thing?

Important Rarity Consideration

Before we dive into growing tips, there’s something important to know: Cusick’s frasera has a Global Conservation Status of T3T4, indicating it faces some conservation concerns in the wild. This means if you’re drawn to growing this beauty, it’s crucial to source your plants or seeds responsibly from reputable native plant nurseries rather than collecting from wild populations.

Garden Design and Landscape Role

Cusick’s frasera shines in several garden settings:

  • Rock gardens where its dramatic form creates focal points
  • Native plant gardens celebrating regional flora
  • Xerophytic landscapes designed for water conservation
  • Naturalized wildflower meadows
  • Specimen plantings where architectural plants are desired

Growing Conditions and Care

The good news is that once established, Cusick’s frasera is refreshingly low-maintenance. This mountain native thrives in:

  • Well-draining soils (essential for preventing root rot)
  • Full sun to partial shade conditions
  • USDA hardiness zones 4-8
  • Areas with good air circulation

After establishment, this drought-tolerant beauty can handle dry spells like a champ, making it perfect for water-wise gardening approaches.

Planting and Care Tips

Here’s where Cusick’s frasera shows its independent streak. This plant develops a long taproot, which makes it incredibly drought-resistant but also means it doesn’t appreciate being moved once settled. Choose your planting location carefully!

Key care considerations:

  • Avoid overwatering, especially in heavy soils
  • Provide excellent drainage to prevent root issues
  • Minimal fertilization needed – this native prefers lean soils
  • Be patient with establishment, as mountain natives often take time to settle in

Benefits for Pollinators and Wildlife

While specific wildlife benefits aren’t well-documented for this particular variety, Frasera species generally attract native bees, butterflies, and other pollinators with their nectar-rich flowers. By choosing natives like Cusick’s frasera, you’re supporting the complex web of relationships between plants and wildlife that have evolved together over thousands of years.

The Bottom Line

Cusick’s frasera offers gardeners a chance to grow something truly special – a dramatic native plant that connects your landscape to the wild beauty of the Pacific Northwest mountains. While its rarity status means we need to be thoughtful about sourcing, responsibly grown specimens can bring years of low-maintenance beauty to the right garden setting.

If you’re drawn to unique native plants that tell the story of your region while requiring minimal fuss once established, Cusick’s frasera might just be the perfect addition to your garden palette. Just remember to source responsibly and give it the well-draining conditions it craves!

Cusick’s Frasera

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Gentianales

Family

Gentianaceae Juss. - Gentian family

Genus

Frasera Walter - green gentian

Species

Frasera albicaulis Douglas ex Griseb. - whitestem frasera

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