North America Native Plant

Norwegian Arctic Cudweed

Botanical name: Omalotheca norvegica

USDA symbol: OMNO

Life cycle: perennial

Habit: forb

Native status: Native to Canada âš˜ Native to Greenland  

Synonyms: Gnaphalium norvegicum Gunnerus (GNNO)   

Norwegian Arctic Cudweed: A Hardy Native for Extreme Climates If you’re gardening in one of the coldest corners of North America and looking for a truly tough native plant, Norwegian arctic cudweed (Omalotheca norvegica) might just be your new best friend. This unassuming perennial forb has mastered the art of ...

Norwegian Arctic Cudweed: A Hardy Native for Extreme Climates

If you’re gardening in one of the coldest corners of North America and looking for a truly tough native plant, Norwegian arctic cudweed (Omalotheca norvegica) might just be your new best friend. This unassuming perennial forb has mastered the art of survival in some of the harshest climates on the continent, making it a unique choice for gardeners dealing with extreme cold.

What Exactly Is Norwegian Arctic Cudweed?

Norwegian arctic cudweed is a small perennial forb – essentially a non-woody flowering plant that comes back year after year. You might also see it listed under its scientific synonym, Gnaphalium norvegicum, in older gardening references. This hardy little survivor belongs to the sunflower family and has adapted to thrive where many other plants simply can’t survive.

Where Does It Call Home?

This plant is native to the arctic and subarctic regions of Canada, including Quebec, Labrador, and Newfoundland, as well as Greenland. It’s perfectly at home in the kind of climate that sends most gardeners running for their heating bills – we’re talking about areas that experience some of the most challenging growing conditions in North America.

Should You Plant Norwegian Arctic Cudweed?

Here’s the thing about Norwegian arctic cudweed – it’s not going to be the showstopper of your garden. This plant is all about subtle beauty and incredible resilience rather than flashy flowers. Consider planting it if:

  • You garden in USDA hardiness zones 1-4
  • You’re creating an authentic northern native plant garden
  • You need groundcover for challenging, cold sites
  • You appreciate plants with interesting textures and quiet charm
  • You want to support local ecosystems with truly native species

However, if you’re looking for bold colors, dramatic height, or a plant that thrives in warmer climates, you’ll want to explore other options.

What Does It Look Like?

Norwegian arctic cudweed has a distinctive woolly, silvery-gray appearance that helps it survive harsh conditions. The plant produces small clusters of white to grayish flowers that may seem unremarkable at first glance, but there’s something appealing about their understated presence. The woolly texture of both leaves and flowers gives the entire plant a soft, almost ethereal quality that works beautifully in naturalized settings.

Perfect Garden Situations

This isn’t your typical border perennial, but it can be perfect for:

  • Rock gardens that mimic alpine conditions
  • Native plant gardens focused on northern species
  • Naturalized areas where you want authentic regional flora
  • Challenging sites with poor soil and harsh conditions
  • Ground cover in areas where few other plants will survive

Growing Conditions and Care

The beauty of Norwegian arctic cudweed lies in its minimal care requirements – once you understand what it needs:

Light: Prefers full sun but can tolerate partial shade

Soil: The key word here is drainage. This plant absolutely must have well-draining soil and will not tolerate wet feet. Poor, rocky soils are actually preferable to rich, moist garden soil.

Climate: Thrives in zones 1-4, where it can experience the cold winters it’s adapted to expect

Water: Once established, it’s quite drought tolerant. Overwatering is more likely to kill it than underwatering.

Planting and Care Tips

  • Plant in spring after the last frost, though this plant can handle cold better than most
  • Ensure excellent drainage – add gravel or sand to heavy soils
  • Avoid fertilizing; rich soils can actually weaken the plant
  • Allow natural winter dieback and don’t cut back until spring
  • Be patient – this plant may take time to establish but will reward you with years of reliable performance

Wildlife and Pollinator Value

While Norwegian arctic cudweed may not be a pollinator magnet like some showier natives, it does provide nectar for small insects and flies. In its native range, it plays a role in supporting the intricate web of life that exists in harsh northern ecosystems.

The Bottom Line

Norwegian arctic cudweed is definitely a specialist plant for specific conditions and gardeners. If you’re working with extreme cold, challenging soils, and want to grow something truly native to northern regions, this quiet beauty could be exactly what you’re looking for. Just remember – success with this plant is all about mimicking its natural habitat: cold, well-drained, and not overly pampered.

For gardeners in milder climates or those seeking more conventional garden plants, you might want to explore other native options better suited to your specific conditions. But for those brave souls gardening in the far north, Norwegian arctic cudweed offers a chance to grow something authentically local and remarkably resilient.

Norwegian Arctic Cudweed

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

Omalotheca Cass. - arctic cudweed

Species

Omalotheca norvegica (Gunnerus) Schultz-Bipontinus & F.W. Schultz - Norwegian arctic cudweed

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