North America Native Plant

California Buttercup

Botanical name: Ranunculus californicus

USDA symbol: RACA2

Life cycle: perennial

Habit: forb

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

Synonyms: Ranunculus californicus Benth. var. austromontanus L.D. Benson (RACAA)  âš˜  Ranunculus californicus Benth. var. cuneatus Greene (RACAC)  âš˜  Ranunculus californicus Benth. var. gratus Jeps. (RACAG)  âš˜  Ranunculus californicus Benth. var. rugulosus (Greene) L.D. Benson (RACAR)  âš˜  Ranunculus californicus Benth. var. typicus L.D. Benson (RACAT)  âš˜  Ranunculus rugulosus Greene (RARU2)   

California Buttercup: A Cheerful Native Wildflower for Your Garden If you’re looking to add a splash of sunshine to your native garden, the California buttercup (Ranunculus californicus) might just be the perfect choice. This delightful perennial wildflower brings bright yellow blooms to the landscape when most other plants are still ...

California Buttercup: A Cheerful Native Wildflower for Your Garden

If you’re looking to add a splash of sunshine to your native garden, the California buttercup (Ranunculus californicus) might just be the perfect choice. This delightful perennial wildflower brings bright yellow blooms to the landscape when most other plants are still waking up from winter’s slumber.

What is California Buttercup?

California buttercup is a native perennial forb that belongs to the buttercup family. Unlike plants with woody stems, this charming wildflower stays herbaceous throughout its life, growing from buds located at or below ground level. Don’t let its delicate appearance fool you – this hardy native has been thriving in Pacific Coast ecosystems for thousands of years.

Where Does It Grow Naturally?

This native beauty calls the Pacific Coast home, naturally occurring in British Columbia, California, Oregon, and Washington. It’s truly a regional treasure that has adapted perfectly to the unique climate patterns of the western coast.

Why Choose California Buttercup for Your Garden?

There are plenty of reasons to fall in love with this native gem:

  • Provides early spring color when few other plants are blooming
  • Supports native pollinators including bees, flies, and beetles
  • Low maintenance once established
  • Excellent for naturalizing areas
  • Authentic to regional ecosystems
  • Attractive glossy yellow flowers with five petals
  • Interesting deeply lobed, palmate leaves add texture

Perfect Garden Settings

California buttercup shines brightest in:

  • Native plant gardens
  • Woodland gardens
  • Naturalized meadows
  • Rain gardens
  • Areas where you want authentic regional character

This versatile native works beautifully as a ground cover in naturalized settings, where it can spread and create drifts of golden blooms.

Growing Conditions and Care

The wonderful thing about native plants is that they’re already adapted to local conditions. California buttercup thrives in USDA hardiness zones 7-10 and appreciates:

  • Moist to moderately dry, well-draining soils
  • Partial shade to full sun exposure
  • Winter moisture (it’s naturally drought-dormant in summer)
  • Various soil types, though it prefers good drainage

Planting and Care Tips

Getting started with California buttercup is refreshingly straightforward:

  • Plant in fall to allow establishment before spring growth
  • Provide regular water during the growing season
  • Allow the plant to go naturally dormant during hot summer months
  • Minimal care needed once established – let it follow natural seasonal patterns
  • Works well in both wetland and upland conditions, making it quite adaptable

Supporting Local Wildlife

By planting California buttercup, you’re creating a valuable resource for local wildlife. Early spring pollinators especially appreciate the nectar and pollen when few other food sources are available. This timing makes it a crucial component in supporting healthy pollinator populations throughout the growing season.

The Bottom Line

California buttercup offers gardeners a chance to grow something both beautiful and meaningful. Its bright blooms provide early season interest, while its native status means you’re supporting local ecosystems and wildlife. Plus, its low-maintenance nature makes it perfect for gardeners who want maximum impact with minimal fuss. If you’re ready to embrace authentic regional gardening, this cheerful native wildflower deserves a spot in your landscape.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" matching plants to their ideal growing conditions, so they'll thrive with less work and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection is. While tags list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. Surprisingly, many popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. Also, it helps you make smarter gardening choices and grow healthy plants with less care and feeding, saving you time, frustration, and money while producing an attractive garden with greater ecological benefits.

Regions
Status
Moisture Conditions

Arid West

FACU

Facultative Upland - Plants with this status usually occurs in non-wetlands but may occur in wetlands

Western Mountains, Valleys, and Coast

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

California 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 californicus Benth. - California buttercup

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