North America Native Plant

Low Spearwort

Botanical name: Ranunculus pusillus

USDA symbol: RAPU

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Low Spearwort: A Tiny Native Gem for Your Wetland Garden If you’re looking for a diminutive native plant that thrives where others fear to tread—namely, in soggy, waterlogged soil—then low spearwort (Ranunculus pusillus) might just be your new best friend. This petite member of the buttercup family proves that good ...

Low Spearwort: A Tiny Native Gem for Your Wetland Garden

If you’re looking for a diminutive native plant that thrives where others fear to tread—namely, in soggy, waterlogged soil—then low spearwort (Ranunculus pusillus) might just be your new best friend. This petite member of the buttercup family proves that good things really do come in small packages.

What Makes Low Spearwort Special?

Low spearwort is an annual forb, which means it’s a non-woody plant that completes its entire life cycle in one growing season. Don’t let its small stature fool you—this little powerhouse is native to the lower 48 states and has adapted to thrive in wet conditions that would drown many other plants.

The plant produces charming, tiny yellow flowers that look like miniature buttercups, sitting atop slender stems with narrow, spear-shaped leaves (hence the spearwort name). Growing only 2-6 inches tall and spreading 3-6 inches wide, it’s definitely not a showstopper from a distance, but up close, it’s absolutely delightful.

Where Does Low Spearwort Grow Naturally?

This adaptable native has quite the range, calling home to 25 states across the country: Alabama, Arkansas, California, Delaware, District of Columbia, Florida, Georgia, Illinois, Indiana, Kentucky, Louisiana, Maryland, Mississippi, Missouri, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, and West Virginia.

Why Your Garden Might Love Low Spearwort

Here’s where low spearwort really shines: it’s practically married to wet conditions. In most regions, it’s classified as an obligate wetland plant, meaning it almost always occurs in wetlands. In the Atlantic and Gulf Coastal Plain, it’s slightly more flexible as a facultative wetland plant, but it still strongly prefers moist conditions.

This makes low spearwort perfect for:

  • Rain gardens that collect runoff
  • Bog gardens and pond margins
  • Areas with poor drainage where other plants struggle
  • Naturalized wetland plantings
  • Native plant gardens in consistently moist areas

Pollinator and Wildlife Benefits

While small, the cheerful yellow flowers of low spearwort attract small pollinators like tiny bees and flies. These diminutive blooms might not draw the big, showy butterflies, but they’re perfect for the smaller, often-overlooked pollinators that play crucial roles in our ecosystems.

Growing Conditions and Care

Low spearwort is surprisingly easy to please—as long as you can provide what it craves most: moisture. Here’s what you need to know:

USDA Hardiness Zones: 4-9

Light Requirements: Full sun to partial shade (it’s quite adaptable!)

Soil Needs: Consistently moist to wet soils. This plant doesn’t do drought—think permanently damp rather than well-draining.

Water Requirements: High—this is where low spearwort separates itself from fair-weather plants

Planting and Propagation Tips

Since low spearwort is an annual, it relies on seeds to continue from year to year. Here’s how to establish it successfully:

  • Direct seeding: Scatter seeds in fall or early spring directly where you want them to grow
  • Timing: Fall planting allows natural cold stratification over winter
  • Self-seeding: Once established, it typically self-seeds readily in suitable conditions
  • Patience required: Seeds may take time to germinate, so don’t give up too quickly

Is Low Spearwort Right for Your Garden?

Low spearwort isn’t for every garden or every gardener. If you’re someone who prefers bold, dramatic plants or you garden in dry conditions, this might not be your match. However, if you:

  • Have consistently wet or boggy areas in your landscape
  • Want to support native plant communities
  • Appreciate subtle, delicate beauty
  • Need ground cover for challenging wet spots
  • Are creating habitat for small pollinators

Then low spearwort could be exactly what you’re looking for. It’s a plant that knows its niche and fills it beautifully, providing a charming carpet of tiny yellow blooms in places where few other natives dare to grow.

Remember, as an annual, you’ll need to let it go to seed if you want it to return next year. But once you’ve got it established in the right conditions, this little native should keep coming back to brighten your wetland garden year after year.

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

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Atlantic and Gulf Coastal Plain

FACW

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

Eastern Mountains and Piedmont

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Great Plains

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Midwest

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Northcentral & Northeast

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Western Mountains, Valleys, and Coast

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Low Spearwort

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 pusillus Poir. - low spearwort

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