North America Native Plant

Ice Cold Buttercup

Botanical name: Ranunculus karelinii

USDA symbol: RAKA3

Life cycle: perennial

Habit: forb

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

Synonyms: Ranunculus gelidus Kar. & Kir. (RAGE)  âš˜  Ranunculus gelidus Kar. & Kir. ssp. grayi (Britton) Hultén (RAGEG)  âš˜  Ranunculus gelidus Kar. & Kir. var. shumaginensis Hultén (RAGES)  âš˜  Ranunculus grayi Britton (RAGR3)   

Ice Cold Buttercup: A Rare Arctic Beauty for Specialized Gardens Meet the ice cold buttercup (Ranunculus karelinii), a charming little wildflower that lives up to its chilly name! This rare arctic beauty brings a splash of sunshine-yellow blooms to some of the world’s coldest places, making it a truly unique ...

Rare plant alert!

Region: Conservation status by state

Status: S5T1Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ 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. ⚘

Ice Cold Buttercup: A Rare Arctic Beauty for Specialized Gardens

Meet the ice cold buttercup (Ranunculus karelinii), a charming little wildflower that lives up to its chilly name! This rare arctic beauty brings a splash of sunshine-yellow blooms to some of the world’s coldest places, making it a truly unique addition for adventurous gardeners willing to take on a challenge.

What Makes Ice Cold Buttercup Special

Also known by several scientific synonyms including Ranunculus gelidus and Ranunculus grayi, this perennial forb is a member of the buttercup family that has adapted to life in extremely cold conditions. Unlike its more common cousins, the ice cold buttercup thrives where most plants fear to tread – in the frigid landscapes of the far north.

This hardy little plant produces the classic buttercup look we all recognize: bright, glossy yellow flowers with five cheerful petals that seem to glow against the often stark backdrop of its native habitat. The blooms typically appear in late spring to early summer, creating a brief but spectacular display.

Where Does It Call Home?

The ice cold buttercup is native to North America, with populations scattered across Alaska, Canada, and the lower 48 states. You’ll find it growing wild in Alberta, British Columbia, Alaska, Colorado, Yukon, Northwest Territories, Idaho, Montana, Utah, and Wyoming. These locations tell the story of a plant that loves high elevations and cold climates!

Important Conservation Note

Before we dive into growing tips, there’s something important to know: ice cold buttercup has a Global Conservation Status that suggests it may be of conservation concern. If you’re interested in growing this rare beauty, please only source plants or seeds from reputable native plant nurseries that practice responsible propagation methods. Never collect from wild populations.

Is This Plant Right for Your Garden?

Let’s be honest – ice cold buttercup isn’t for every gardener or every garden. Here’s what you need to consider:

The Good News

  • Stunning yellow blooms that brighten cold-climate gardens
  • Supports native pollinators like small bees and flies adapted to cold conditions
  • Perfect conversation starter for plant enthusiasts
  • Extremely hardy in cold conditions (USDA zones 2-5)
  • Non-invasive native species

The Challenges

  • Very difficult to cultivate outside its natural range
  • Requires specific cold, moist conditions
  • Limited availability due to conservation status
  • Not suitable for warm climate gardens
  • Specialized growing requirements

Growing Conditions and Care

If you’re up for the challenge and live in the right climate zone (USDA zones 2-5), here’s what ice cold buttercup needs to thrive:

Light: Full sun to partial shade – it’s adapted to the intense but brief summers of its native range.

Soil: Well-draining soil that stays consistently moist. Think mountain meadow conditions rather than soggy wetlands, though it can tolerate some moisture variation.

Water: Consistent moisture is key, but avoid waterlogged conditions. The plant has a facultative wetland status, meaning it can handle both wet and drier conditions.

Temperature: This is the big one – ice cold buttercup absolutely requires cold winter dormancy. Without a proper freeze, it won’t perform well.

Garden Design Ideas

When successfully grown, ice cold buttercup works beautifully in:

  • Alpine and rock gardens
  • Native plant collections focused on cold-climate species
  • Specialized wildflower meadows in appropriate climates
  • Educational gardens showcasing arctic and subarctic flora

Supporting Wildlife

While small, ice cold buttercup plays an important role in supporting cold-adapted pollinators. Its bright yellow flowers provide nectar and pollen for native bees, flies, and other insects that have evolved alongside arctic and alpine plant communities.

The Bottom Line

Ice cold buttercup is definitely not a beginner plant, but for experienced gardeners in cold climates who appreciate rare native species, it can be a rewarding challenge. The key is understanding that you’re working with a plant that has very specific needs shaped by millions of years of evolution in harsh, cold environments.

If you’re not in the right climate zone or prefer easier-care options, consider other native buttercup species that might be better suited to your local conditions. Your local native plant society can help you identify beautiful alternatives that will thrive in your specific region while still supporting local wildlife.

Remember, successful native gardening is all about working with nature, not against it – and sometimes that means appreciating a plant’s beauty from afar rather than trying to force it into unsuitable conditions!

Ice Cold Buttercup

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Magnoliidae

Order

Ranunculales

Family

Ranunculaceae Juss. - Buttercup family

Genus

Ranunculus L. - buttercup

Species

Ranunculus karelinii Czern. - ice cold buttercup

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