North America Native Plant

Hoary Skullcap

Botanical name: Scutellaria incana var. incana

USDA symbol: SCINI2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Hoary Skullcap: A Charming Native Shade Perennial for Your Garden If you’re searching for a low-maintenance native plant that thrives in those tricky shady spots, let me introduce you to hoary skullcap (Scutellaria incana var. incana). This delightful perennial might not be the showiest plant in your garden, but it’s ...

Hoary Skullcap: A Charming Native Shade Perennial for Your Garden

If you’re searching for a low-maintenance native plant that thrives in those tricky shady spots, let me introduce you to hoary skullcap (Scutellaria incana var. incana). This delightful perennial might not be the showiest plant in your garden, but it’s definitely one of the most reliable and eco-friendly choices you can make.

What Makes Hoary Skullcap Special?

Hoary skullcap is a true American native, naturally occurring across much of the eastern and central United States. As a perennial forb, it lacks woody stems but returns year after year, slowly spreading to form lovely colonies in woodland settings. The hoary in its name refers to the soft, whitish undersides of its leaves, which create a beautiful silvery contrast against the gray-green tops.

Where Does It Grow Naturally?

This adaptable native calls home to an impressive 25 states, stretching from the Northeast down to the Gulf Coast and west into the Great Plains. You’ll find it naturally growing in Alabama, Arkansas, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Michigan, Mississippi, Missouri, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, West Virginia, and Wisconsin.

Garden Appeal and Design Role

While hoary skullcap may not stop traffic with flashy blooms, it offers subtle beauty that seasoned gardeners appreciate. In late summer, it produces small, tubular blue to purple flowers that peek out among the foliage. The real star is the textural interest from its distinctive hoary leaves and its ability to knit together other plantings in woodland gardens.

This plant excels as:

  • A groundcover in shaded areas
  • An understory plant in woodland gardens
  • A naturalizing species for low-maintenance areas
  • A companion plant for other native shade perennials

Perfect Garden Settings

Hoary skullcap feels most at home in:

  • Woodland and shade gardens
  • Native plant landscapes
  • Naturalized areas where you want low-maintenance coverage
  • Rain gardens and areas with variable moisture

Wildlife and Pollinator Benefits

Don’t let its modest appearance fool you – hoary skullcap is a pollinator magnet! Bees absolutely love the small tubular flowers, and butterflies often visit for nectar. The plant also provides habitat and food sources for various beneficial insects, making it an excellent choice for supporting local ecosystems.

Growing Conditions and Care

Here’s where hoary skullcap really shines – it’s incredibly easy to grow! This adaptable native thrives in USDA hardiness zones 5 through 8 and tolerates a wide range of conditions.

Preferred conditions:

  • Light: Partial shade to full shade
  • Soil: Adaptable to various soil types
  • Moisture: Drought tolerant once established
  • Maintenance: Minimal care required

Planting and Care Tips

Getting hoary skullcap established in your garden is refreshingly straightforward:

  • When to plant: Spring or fall are ideal times
  • Spacing: Allow room for spreading, as it naturalizes through rhizomes
  • Watering: Regular water the first year, then it’s quite drought tolerant
  • Fertilizing: Generally unnecessary – native plants prefer lean soils
  • Pruning: Cut back in late fall or early spring if desired

Why Choose Hoary Skullcap?

If you’re looking for a reliable, low-maintenance native that supports pollinators and fills challenging shady spots, hoary skullcap deserves a place in your garden. It’s not flashy, but it’s dependable, eco-friendly, and perfectly suited to creating that relaxed, naturalistic garden style that’s so popular today.

Plus, once established, it practically takes care of itself – leaving you more time to enjoy your garden rather than constantly tending to it. In our busy world, that’s a gift worth appreciating!

Hoary 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 incana Biehler - hoary skullcap

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