North America Native Plant

Small’s Blacksnakeroot

Botanical name: Sanicula smallii

USDA symbol: SASM

Life cycle: biennial

Habit: forb

Native status: Native to the lower 48 states  

Small’s Blacksnakeroot: A Hidden Gem for Shade Gardens If you’re looking to add a touch of woodland magic to your shade garden, Small’s blacksnakeroot (Sanicula smallii) might just be the understated beauty you’ve been seeking. This charming native wildflower may not have the showstopping blooms of a cardinal flower, but ...

Rare plant alert!

Region: Arkansas

Status: S3: Status is uncertain but is somewhere between the following rankings: Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

Small’s Blacksnakeroot: A Hidden Gem for Shade Gardens

If you’re looking to add a touch of woodland magic to your shade garden, Small’s blacksnakeroot (Sanicula smallii) might just be the understated beauty you’ve been seeking. This charming native wildflower may not have the showstopping blooms of a cardinal flower, but it brings its own quiet elegance to the forest floor—and to your garden.

What Is Small’s Blacksnakeroot?

Small’s blacksnakeroot is a native North American forb—essentially a non-woody herbaceous plant that can live as either a biennial or perennial. Don’t let the somewhat ominous blacksnakeroot name scare you off; this plant is perfectly harmless and gets its name from traditional medicinal uses rather than any reptilian associations!

This lovely woodland dweller features palmately divided leaves (think of a hand with fingers spread) and produces clusters of tiny, greenish-white flowers arranged in umbrella-like formations called umbels. While the blooms may be small, they have a delicate charm that’s perfect for close-up appreciation.

Where Does It Call Home?

Small’s blacksnakeroot is native to a generous swath of the southeastern and south-central United States, making its home in 17 states including Alabama, Arkansas, Florida, Georgia, Illinois, Indiana, Kentucky, Louisiana, Mississippi, Missouri, North Carolina, Ohio, South Carolina, Tennessee, Texas, Virginia, and West Virginia.

It’s worth noting that in Arkansas, this species has a rarity status of S3, meaning it’s somewhat uncommon in the state. If you’re planning to add this plant to your garden, make sure you source it responsibly from reputable native plant nurseries rather than collecting from wild populations.

Why Grow Small’s Blacksnakeroot?

Here’s why this modest woodland gem deserves a spot in your shade garden:

  • Native plant benefits: As a true native, it supports local ecosystems and requires less water and maintenance once established
  • Pollinator magnet: The small flowers attract native bees, flies, and other tiny pollinators that often get overlooked
  • Low maintenance: Once happy in its spot, it pretty much takes care of itself
  • Naturalizing ability: It self-seeds readily, creating lovely colonies over time
  • Shade tolerance: Perfect for those tricky shady spots where many plants struggle

Perfect Garden Settings

Small’s blacksnakeroot shines in:

  • Woodland gardens
  • Native plant gardens
  • Shade borders
  • Rain gardens (it appreciates consistent moisture)
  • Naturalized areas under trees

It’s particularly lovely when allowed to weave between other woodland favorites like wild ginger, trilliums, or native ferns.

Growing Conditions and Care

The good news? Small’s blacksnakeroot isn’t particularly fussy once you understand its preferences:

  • Light: Partial to full shade (mimicking its natural woodland habitat)
  • Soil: Moist, well-draining soil rich in organic matter
  • Water: Consistent moisture, but not waterlogged
  • USDA Zones: Hardy in zones 5-9

Planting and Care Tips

Getting started with Small’s blacksnakeroot is refreshingly straightforward:

  • Plant in spring or fall when temperatures are moderate
  • Amend your soil with compost or leaf mold to boost organic content
  • Space plants 12-18 inches apart to allow for natural spreading
  • Mulch lightly with shredded leaves to retain moisture and suppress weeds
  • Water regularly the first year while plants establish
  • Let it self-seed if you want natural colonies to develop

Once established, this plant is remarkably self-sufficient. You might not even remember it’s there until those charming little flower clusters appear!

A Word About Responsible Sourcing

Since Small’s blacksnakeroot has some rarity concerns in parts of its range, it’s extra important to source plants responsibly. Purchase from reputable native plant nurseries, participate in native plant society sales, or trade with fellow gardeners who have established populations. Never collect from wild populations.

The Bottom Line

Small’s blacksnakeroot may not be the flashiest plant in your garden, but it brings authentic woodland character and valuable ecological benefits to shady spaces. For gardeners who appreciate subtle beauty and want to support native biodiversity, this understated charmer is definitely worth considering. Plus, once you get it established, it’ll reward your minimal efforts by quietly taking care of itself—and that’s the kind of garden partnership we can all appreciate!

Small’s Blacksnakeroot

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Apiales

Family

Apiaceae Lindl. - Carrot family

Genus

Sanicula L. - sanicle

Species

Sanicula smallii E.P. Bicknell - Small's blacksnakeroot

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