North America Native Plant

Field Sagewort

Botanical name: Artemisia campestris borealis var. wormskioldii

USDA symbol: ARCAW

Life cycle: biennial

Habit: forb

Native status: Native to the lower 48 states  

Field Sagewort: A Rare Pacific Northwest Native Worth Knowing If you’re passionate about native plants and conservation, you might be intrigued by field sagewort (Artemisia campestris borealis var. wormskioldii), a fascinating member of the artemisia family that calls the Pacific Northwest home. While this isn’t your typical garden center find, ...

Rare plant alert!

Region: Conservation status by state

Status: S5T1: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ 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. ⚘

Field Sagewort: A Rare Pacific Northwest Native Worth Knowing

If you’re passionate about native plants and conservation, you might be intrigued by field sagewort (Artemisia campestris borealis var. wormskioldii), a fascinating member of the artemisia family that calls the Pacific Northwest home. While this isn’t your typical garden center find, understanding this rare native can deepen your appreciation for the incredible diversity of plants in our region.

What Makes This Plant Special?

Field sagewort belongs to the beloved artemisia genus, known for their aromatic foliage and hardy nature. This particular variety is a forb – essentially a non-woody flowering plant that lacks the thick, woody stems of shrubs and trees. Think of it as an herbaceous perennial that keeps its growing points at or below ground level, helping it survive harsh conditions.

What sets this field sagewort apart is its biennial to perennial nature, meaning it can live for two or more years, unlike annual plants that complete their life cycle in just one growing season.

Where You’ll Find It Growing Wild

This rare native has a very limited natural range, occurring only in Oregon and Washington. Its restricted distribution makes it a true Pacific Northwest specialty, adapted to the unique conditions of this region.

A Word About Rarity

Here’s where things get important for conservation-minded gardeners: this field sagewort variety has a Global Conservation Status of S5T1. While the exact definition of this status isn’t clear from available data, any plant with such a specific conservation designation deserves our attention and respect.

If you’re considering adding this plant to your garden, it’s crucial to source it responsibly. Never collect plants from the wild, and if you do find a reputable nursery that offers this variety, make sure they’ve propagated it ethically rather than wild-harvesting.

Should You Grow Field Sagewort?

This is where honesty comes in handy – information about growing this specific variety is extremely limited. Unlike its more common artemisia cousins that you might find in garden centers, this particular field sagewort remains somewhat mysterious in terms of:

  • Specific growing requirements
  • Mature size and appearance
  • Preferred soil conditions
  • Watering needs
  • Hardiness zones

What We Do Know

As a native forb from the Pacific Northwest, we can make some educated guesses based on the region and plant family:

  • It likely prefers well-draining soils (most artemisias do)
  • Probably adapted to the Mediterranean-like climate of its native range
  • As a forb, it won’t develop woody stems like shrubs
  • Being biennial to perennial, it should return year after year once established

Better-Known Alternatives

If you’re drawn to native artemisias but can’t locate this rare variety, consider these more readily available Pacific Northwest natives:

  • Big sagebrush (Artemisia tridentata) for larger spaces
  • Fringed sagewort (Artemisia frigida) for smaller gardens
  • Other native Artemisia campestris varieties that might be more available

The Bottom Line

Field sagewort represents the incredible botanical diversity hiding in plain sight in our Pacific Northwest landscapes. While it might not be the easiest plant to find or grow, knowing about it helps us appreciate the complex web of native species that call this region home.

If you do encounter this plant in the wild during your hiking adventures in Oregon or Washington, take a moment to appreciate this rare native. And remember – look but don’t touch when it comes to rare plants in their natural habitat.

Sometimes the most valuable plants in our native plant journey are the ones that teach us about conservation, rarity, and the importance of protecting the wild spaces where these botanical treasures still thrive.

Field Sagewort

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

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Artemisia L. - sagebrush

Species

Artemisia campestris L. - field sagewort

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