North America Native Plant

Feverwort

Botanical name: Triosteum perfoliatum

USDA symbol: TRPE5

Life cycle: perennial

Habit: forb

Native status: Native to Canada âš˜ Native to the lower 48 states  

Feverwort: A Quiet Native for Shady Spaces Meet feverwort (Triosteum perfoliatum), one of those understated native plants that might not win any beauty contests but earns its place in the garden through pure practicality. This perennial forb has been quietly growing in North American woodlands for centuries, and it’s ready ...

Feverwort: A Quiet Native for Shady Spaces

Meet feverwort (Triosteum perfoliatum), one of those understated native plants that might not win any beauty contests but earns its place in the garden through pure practicality. This perennial forb has been quietly growing in North American woodlands for centuries, and it’s ready to bring that same low-key reliability to your shade garden.

What Exactly Is Feverwort?

Feverwort is a native perennial that belongs to the honeysuckle family, though it looks nothing like the climbing vines most people associate with that group. Instead, this herbaceous plant grows as an upright forb – essentially a non-woody flowering plant that dies back to the ground each winter and returns reliably each spring.

The plant gets its common name from its historical use in folk medicine, where it was believed to help reduce fevers. While we don’t recommend using it medicinally today, the name gives you a hint about how long people have been noticing this humble woodland dweller.

Where Feverwort Calls Home

This hardy native has quite an impressive range across North America. You’ll find feverwort growing naturally from southeastern Canada down through much of the eastern and central United States. Its range includes Alabama, Arkansas, Connecticut, Delaware, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Nebraska, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas, Virginia, West Virginia, and Wisconsin, plus Ontario and Quebec in Canada.

What Does Feverwort Look Like?

Feverwort won’t stop traffic with flashy blooms, but it has its own subtle charm. The plant typically grows 2-4 feet tall with distinctive paired leaves that seem to wrap around the stem – a characteristic called perfoliate that gives the plant its scientific name. In early summer, small, inconspicuous yellowish or purplish flowers appear where the leaves meet the stem.

The real show comes in fall when the plant produces clusters of bright orange-red berries that add a pop of color to the autumn landscape. These berries are what make feverwort worthwhile for wildlife gardeners.

Why Grow Feverwort?

Let’s be honest – you’re probably not growing feverwort for its stunning beauty. But here’s why you might want to consider it anyway:

  • It’s incredibly low-maintenance: Once established, feverwort pretty much takes care of itself
  • Perfect for problem areas: Those tricky shady spots where other plants struggle? Feverwort thrives there
  • Wildlife value: Birds appreciate those fall berries, and you’re supporting native ecosystems
  • Authentic woodland feel: If you’re creating a naturalized woodland garden, feverwort adds authentic native presence
  • Self-seeds gently: It will spread slowly over time, filling in your woodland areas naturally

Growing Feverwort Successfully

The best thing about feverwort is how easy it is to grow – assuming you can give it what it wants:

Light Requirements: Feverwort prefers partial to full shade. It can tolerate some morning sun, but afternoon shade is essential, especially in warmer climates.

Soil Needs: This adaptable native isn’t fussy about soil type. It grows well in moist to moderately dry conditions and tolerates everything from sandy loam to clay. Good drainage is helpful but not critical.

Hardiness: Feverwort is cold-hardy in USDA zones 3-8, making it suitable for most temperate regions where it’s native.

Watering: Water regularly the first year to help establish the root system. After that, feverwort is quite drought-tolerant, though it appreciates consistent moisture during dry spells.

Planting and Care Tips

Getting feverwort established is straightforward:

  • Timing: Plant in spring after the last frost or in early fall
  • Spacing: Give plants 18-24 inches apart – they’ll eventually form small colonies
  • Mulching: A layer of organic mulch helps retain moisture and suppress weeds
  • Fertilizing: Usually unnecessary – feverwort thrives in average garden soil
  • Pruning: Simply cut back dead stems in late winter or early spring

Is Feverwort Right for Your Garden?

Feverwort works best in specific situations. It’s ideal for:

  • Woodland gardens and naturalized landscapes
  • Shady areas where you want low-maintenance native plants
  • Wildlife-friendly gardens focused on supporting native ecosystems
  • Areas where you want plants that will self-seed and gradually expand

However, feverwort might not be the best choice if you’re looking for showy flowers, compact growth, or plants that stay exactly where you put them.

The Bottom Line

Feverwort may not be the star of your garden, but it can definitely be a reliable supporting player. If you have shady areas that need native plants, appreciate subtle beauty, and want to support local wildlife, feverwort deserves consideration. Just don’t expect it to wow your neighbors – its magic lies in being the kind of dependable, authentic native that makes your garden feel like a natural part of the landscape.

Sometimes the most valuable plants are the ones that simply do their job well, year after year, without asking for much in return. Feverwort is definitely one of those plants.

Feverwort

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

Dipsacales

Family

Caprifoliaceae Juss. - Honeysuckle family

Genus

Triosteum L. - horse-gentian

Species

Triosteum perfoliatum L. - feverwort

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