North America Native Plant

Blue Ridge Horsebalm

Botanical name: Collinsonia serotina

USDA symbol: COSE11

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Collinsonia canadensis L. var. punctata (Elliott) A. Gray (COCAP2)  âš˜  Collinsonia punctata Elliott (COPU12)  âš˜  Hypogon verticillata Raf. (HYVE5)  âš˜  Micheliella anisata (Sims) Briq. (MIAN3)   

Blue Ridge Horsebalm: A Fragrant Native Treasure for Your Shade Garden If you’re looking to add a touch of aromatic charm to your woodland garden, Blue Ridge horsebalm (Collinsonia serotina) might just be the hidden gem you’ve been searching for. This delightfully fragrant native perennial brings a unique blend of ...

Rare plant alert!

Region: Conservation status by state

Status: S3S4: 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 ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Blue Ridge Horsebalm: A Fragrant Native Treasure for Your Shade Garden

If you’re looking to add a touch of aromatic charm to your woodland garden, Blue Ridge horsebalm (Collinsonia serotina) might just be the hidden gem you’ve been searching for. This delightfully fragrant native perennial brings a unique blend of subtle beauty and ecological value to shaded landscapes across the Southeast.

What Makes Blue Ridge Horsebalm Special?

Blue Ridge horsebalm is a native herbaceous perennial that belongs to the mint family, though you might not recognize it as a typical mint at first glance. When you brush against its leaves, however, you’ll immediately notice that distinctive, pleasant minty fragrance that gives away its family ties. This charming forb produces delicate spikes of small, pale yellow to white flowers that add a gentle touch of color to shaded areas where many other flowering plants struggle to thrive.

Where Does It Call Home?

This southeastern native has made itself at home across seven states: Alabama, Florida, Georgia, Louisiana, Mississippi, North Carolina, and South Carolina. As its common name suggests, it’s particularly associated with the Blue Ridge Mountain region, though its range extends well beyond those peaks into various woodland habitats throughout the Southeast.

A Plant Worth Protecting

Here’s something important to know: Blue Ridge horsebalm has a conservation status that suggests it’s becoming less common in the wild. If you’re interested in adding this native beauty to your garden, make sure you source it from reputable native plant nurseries that propagate their stock rather than collecting from wild populations. By choosing responsibly sourced plants, you’re helping protect this species while still enjoying its benefits in your landscape.

Why Your Garden (and Local Wildlife) Will Love It

While Blue Ridge horsebalm might not be the showiest plant in your garden, it offers several compelling reasons to include it in your landscape:

  • Native authenticity: It’s a true southeastern native that supports local ecosystems
  • Aromatic appeal: The fragrant foliage adds sensory interest to your garden
  • Pollinator support: Small bees, flies, and other minor pollinators appreciate its modest flowers
  • Low maintenance: Once established, it requires minimal care
  • Shade tolerance: Thrives in areas where sun-loving plants fail

Though it’s not a major food source for birds (providing only 2-5% of terrestrial birds’ diets), every bit helps when you’re creating a wildlife-friendly landscape.

Growing Blue Ridge Horsebalm Successfully

The good news is that Blue Ridge horsebalm is relatively easy to grow once you understand its preferences. Think of it as a woodland plant that appreciates the same conditions you’d find on a forest floor.

Ideal Growing Conditions

  • Light: Partial to full shade (perfect for those tricky shady spots)
  • Soil: Moist to moderately dry, organic-rich woodland soil
  • Hardiness zones: 6-9, making it suitable for most southeastern gardens
  • Moisture: Consistent moisture is preferred, but it can tolerate some drought once established

Planting and Care Tips

Getting Blue Ridge horsebalm established in your garden is straightforward if you keep these tips in mind:

  • Plant in spring or fall when temperatures are moderate
  • Amend heavy clay soils with compost to improve drainage
  • Mulch around plants to retain moisture and suppress weeds
  • Water regularly the first year to help establish a strong root system
  • Once established, minimal care is needed – this is a truly low-maintenance native

Perfect Garden Partners

Blue Ridge horsebalm works beautifully in naturalized woodland gardens, native plant collections, and anywhere you want to create an authentic southeastern forest understory. Pair it with other shade-loving natives like wild ginger, mayapple, or native ferns for a cohesive woodland look.

The Bottom Line

While Blue Ridge horsebalm might not win any flashy flower contests, it offers something perhaps more valuable: authentic native character with minimal fuss. Its aromatic foliage, ecological benefits, and easy-going nature make it a worthy addition to any shade garden. Just remember to source your plants responsibly, and you’ll be contributing to the conservation of this special southeastern native while enjoying its quiet charms for years to come.

Blue Ridge Horsebalm

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

Collinsonia L. - horsebalm

Species

Collinsonia serotina Walter - Blue Ridge horsebalm

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