North America Native Plant

Ocmulgee Skullcap

Botanical name: Scutellaria ocmulgee

USDA symbol: SCOC2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Ocmulgee Skullcap: A Rare Native Gem Worth Protecting If you’re a native plant enthusiast who loves discovering botanical treasures, you might be intrigued by the Ocmulgee skullcap (Scutellaria ocmulgee). But before you start planning where to plant this beauty in your garden, there’s something crucial you need to know – ...

Rare plant alert!

Region: Conservation status by state

Status: S2: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘

Ocmulgee Skullcap: A Rare Native Gem Worth Protecting

If you’re a native plant enthusiast who loves discovering botanical treasures, you might be intrigued by the Ocmulgee skullcap (Scutellaria ocmulgee). But before you start planning where to plant this beauty in your garden, there’s something crucial you need to know – this little perennial is one of nature’s rarest gems.

What Makes Ocmulgee Skullcap Special?

The Ocmulgee skullcap is a native perennial forb that belongs to the mint family. Like other members of its genus, this herbaceous plant produces the characteristic small, helmet-shaped flowers that give skullcaps their distinctive name. You can expect lovely blue to purple blooms that would make any pollinator garden proud – if you could find this plant, that is.

As a forb, this plant lacks significant woody tissue and maintains its perennating buds at or below ground level, making it a true herbaceous perennial that will return year after year under the right conditions.

A Plant on the Edge: Understanding Its Rarity

Here’s the important part: Ocmulgee skullcap has a Global Conservation Status of S2, meaning it’s imperiled due to extreme rarity. We’re talking about only 6 to 20 known occurrences with roughly 1,000 to 3,000 individual plants remaining in the wild. This makes it one of the botanical world’s most precious species.

Where Does It Call Home?

This rare native is found exclusively in Georgia and South Carolina, making it a true Southeastern specialty. Its extremely limited geographic distribution is part of what makes it so vulnerable to extinction.

The Wetland Connection

Ocmulgee skullcap is classified as a Facultative Wetland plant in both the Atlantic and Gulf Coastal Plain region and the Eastern Mountains and Piedmont region. This means it usually grows in wetland environments but can occasionally be found in non-wetland areas. Think moist soils, wetland edges, and areas with consistent moisture.

Should You Try to Grow It?

Here’s where things get complicated. While supporting rare native plants is admirable, the extreme rarity of Ocmulgee skullcap means that any planting should only be done with responsibly and ethically sourced material. This typically means:

  • Seeds or plants from legitimate conservation programs
  • Material propagated from legal, non-wild sources
  • Plants obtained through botanical gardens or conservation organizations

Never collect this plant from the wild. With so few individuals remaining, every plant in its natural habitat is critical for the species’ survival.

Growing Conditions and Care

If you do manage to source this plant responsibly, here’s what it likely needs based on its natural habitat:

  • Moisture: Consistent soil moisture, reflecting its wetland status
  • USDA Zones: Probably hardy in zones 7-9, matching its Georgia and South Carolina range
  • Soil: Moist to wet soils, possibly with organic matter
  • Garden type: Best suited for native plant gardens, rain gardens, or conservation plantings

Pollinator and Wildlife Benefits

Like other skullcaps, Ocmulgee skullcap likely provides nectar for native bees, butterflies, and other small pollinators. Its rarity means these benefits are currently limited to its tiny natural range, making conservation efforts even more important.

The Bottom Line

Ocmulgee skullcap represents both the beauty and fragility of our native plant heritage. While most gardeners won’t have the opportunity to grow this rare species, simply knowing about it and supporting conservation efforts helps ensure future generations might have that chance.

If you’re passionate about rare native plants, consider supporting botanical gardens, native plant societies, and conservation organizations working to protect species like the Ocmulgee skullcap. Sometimes the best way to help a plant is to appreciate it from afar while supporting the dedicated scientists and conservationists working to ensure its survival.

For most native plant gardens, consider other Scutellaria species that are more readily available and won’t put additional pressure on wild populations. Your local native plant society can recommend suitable alternatives that will provide similar benefits without the conservation concerns.

Ocmulgee Skullcap

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

Lamiales

Family

Lamiaceae Martinov - Mint family

Genus

Scutellaria L. - skullcap

Species

Scutellaria ocmulgee Small - Ocmulgee skullcap

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