North America Native Plant

Chamisso Arnica

Botanical name: Arnica chamissonis foliosa var. incana

USDA symbol: ARCHI4

Life cycle: perennial

Habit: forb

Native status: Native to Canada âš˜ Native to the lower 48 states  

Synonyms: Arnica chamissonis Less. ssp. incana (A. Gray) Maguire (ARCHI5)  âš˜  Arnica foliosa Nutt. var. incana A. Gray (ARFOI)   

Chamisso Arnica: A Cheerful Native Wildflower for Western Gardens If you’re looking to add some sunshine to your native plant garden, meet Chamisso arnica (Arnica chamissonis foliosa var. incana) – a delightful perennial that brings bright yellow blooms and low-maintenance charm to landscapes across western North America. This hardy wildflower ...

Chamisso Arnica: A Cheerful Native Wildflower for Western Gardens

If you’re looking to add some sunshine to your native plant garden, meet Chamisso arnica (Arnica chamissonis foliosa var. incana) – a delightful perennial that brings bright yellow blooms and low-maintenance charm to landscapes across western North America. This hardy wildflower might just be the perfect addition to your garden if you’re seeking something that’s both beautiful and beneficial to local wildlife.

What Makes Chamisso Arnica Special?

Chamisso arnica is a true native gem, naturally occurring across a impressive range from British Columbia down to California, and stretching inland through the Northwest Territories, Yukon, Idaho, Nevada, Oregon, Utah, and Washington. As a native species to both Canada and the lower 48 states, this plant has evolved alongside local ecosystems and wildlife for thousands of years.

This perennial forb (that’s botanist speak for a non-woody flowering plant) produces cheerful yellow, daisy-like flowers that typically measure 2-3 inches across. The blooms appear from summer through early fall, providing a reliable source of color when many other wildflowers are starting to fade. You might also see this plant listed under its botanical synonyms: Arnica chamissonis Less. ssp. incana or Arnica foliosa Nutt. var. incana.

Why Your Garden (and Local Wildlife) Will Love It

Chamisso arnica isn’t just a pretty face – it’s a pollinator magnet. Bees, butterflies, and other beneficial insects flock to its nectar-rich flowers, making it an excellent choice for supporting local biodiversity. If you’re working on creating a pollinator-friendly landscape or participating in habitat restoration efforts, this native wildflower should definitely be on your list.

The plant works beautifully as a groundcover in naturalized areas and adds authentic charm to wildflower meadows. Its informal growth habit makes it perfect for gardens that celebrate the relaxed beauty of native landscapes rather than formal, manicured designs.

Growing Chamisso Arnica Successfully

One of the best things about native plants like Chamisso arnica is that they’re typically low-maintenance once established. Here’s what you need to know to grow this wildflower successfully:

Ideal Growing Conditions

  • Light: Full sun to partial shade
  • Soil: Adapts to various soil types, prefers moist to moderately dry conditions
  • Hardiness: Thrives in USDA zones 3-8
  • Water: Moderate moisture needs; drought tolerant once established

Planting and Care Tips

Plant Chamisso arnica in spring or fall when temperatures are moderate. Choose a location that receives at least partial sunlight, though the plant can tolerate some shade. The soil doesn’t need to be perfect – this adaptable native can handle various soil conditions as long as drainage is reasonable.

Once established, this perennial requires minimal care. It may spread gradually via underground rhizomes, which makes it excellent for filling in naturalized areas over time. During its first growing season, provide regular water to help establish a strong root system, but after that, it should handle normal rainfall with little to no supplemental watering.

Perfect Garden Companions and Design Ideas

Chamisso arnica shines in informal, naturalistic settings. Consider incorporating it into:

  • Native plant gardens alongside other regional wildflowers
  • Wildflower meadows for a natural, prairie-like appearance
  • Restoration projects where you want to reestablish native plant communities
  • Pollinator gardens as a reliable nectar source
  • Informal landscape borders where its spreading habit is welcomed

The Bottom Line

Chamisso arnica offers gardeners in its native range a wonderful opportunity to grow something that’s both beautiful and ecologically beneficial. Its bright yellow flowers, adaptability to various growing conditions, and value to pollinators make it an excellent choice for anyone interested in native gardening. Plus, knowing that you’re growing a plant that belongs in your local ecosystem adds an extra layer of satisfaction to your gardening efforts.

Whether you’re just starting your native plant journey or you’re a seasoned wildflower enthusiast, Chamisso arnica deserves a spot in your garden. Your local bees and butterflies will thank you!

Chamisso Arnica

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

Arnica L. - arnica

Species

Arnica chamissonis Less. - Chamisso arnica

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