North America Native Plant

Mississippi River Wakerobin

Botanical name: Trillium foetidissimum

USDA symbol: TRFO

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Mississippi River Wakerobin: A Unique Native Trillium for Southern Shade Gardens If you’re looking for a conversation starter in your shade garden, meet the Mississippi River wakerobin (Trillium foetidissimum). This fascinating native perennial brings both beauty and intrigue to woodland landscapes, though it comes with one memorable quirk that makes ...

Mississippi River Wakerobin: A Unique Native Trillium for Southern Shade Gardens

If you’re looking for a conversation starter in your shade garden, meet the Mississippi River wakerobin (Trillium foetidissimum). This fascinating native perennial brings both beauty and intrigue to woodland landscapes, though it comes with one memorable quirk that makes it truly unforgettable.

What Makes Mississippi River Wakerobin Special

The Mississippi River wakerobin is a native forb that belongs to the beloved trillium family. Like its cousins, it features the classic three-leaf arrangement that makes trilliums instantly recognizable. What sets this species apart, however, is its distinctive maroon to deep red flowers and its rather… memorable fragrance. The scientific name foetidissimum literally means most foul-smelling, and this plant lives up to its reputation with a strong, carrion-like scent that attracts flies and beetles for pollination.

Where It Calls Home

This remarkable native plant has a fairly limited range, naturally occurring in Louisiana and Mississippi. You’ll find it thriving in the bottomland hardwood forests along the Mississippi River floodplain, where it has adapted to the rich, moist soils and dappled shade of these unique ecosystems.

Why Grow Mississippi River Wakerobin?

Despite its pungent personality, there are compelling reasons to consider this native beauty:

  • Supports native ecosystems and local wildlife
  • Provides unique visual interest with its striking dark flowers
  • Attracts specialized pollinators like flies and beetles
  • Perfect for collectors of unusual native plants
  • Excellent conversation piece for garden tours
  • Helps preserve rare native plant genetics

Growing Conditions and Care

Successfully growing Mississippi River wakerobin requires mimicking its native bottomland forest habitat:

Light Requirements: Partial to full shade is essential. Morning sun with afternoon shade works well.

Soil Needs: Rich, moist, well-draining soil with plenty of organic matter. Think forest floor conditions with good drainage to prevent waterlogging.

Moisture: Consistent moisture is crucial, especially during the growing season. However, avoid soggy conditions that can lead to rhizome rot.

Climate: Hardy in USDA zones 7-9, making it suitable for warmer southern climates.

Planting and Establishment Tips

Growing Mississippi River wakerobin requires patience, as trilliums are notoriously slow to establish:

  • Plant rhizomes in fall for best results
  • Choose a protected, shaded location that mimics woodland conditions
  • Incorporate plenty of compost or leaf mold into the planting area
  • Plant rhizomes about 3-4 inches deep
  • Mulch with organic matter to retain moisture and suppress weeds
  • Be patient – it may take several years for plants to become fully established
  • Avoid disturbing once planted, as trilliums don’t like root disturbance

Garden Design Ideas

Mississippi River wakerobin works beautifully in:

  • Native woodland gardens alongside other southern natives
  • Shade gardens where its unique flowers can be appreciated up close
  • Naturalized areas that mimic bottomland forest conditions
  • Collections of unusual or rare native plants
  • Educational gardens focusing on regional native flora

A Word of Caution and Conservation

Given its limited natural range, it’s important to source Mississippi River wakerobin from reputable nurseries that use ethical propagation methods. Never collect plants from the wild, as this can harm already limited populations. If you’re lucky enough to grow this species successfully, consider yourself a steward of a truly special piece of American botanical heritage.

While the Mississippi River wakerobin may not win any fragrance awards, it offers something far more valuable: a direct connection to the unique ecosystems of the Mississippi River floodplain and the opportunity to support native biodiversity right in your own backyard. For adventurous gardeners willing to embrace its quirky nature, this remarkable trillium can be a rewarding and meaningful addition to the shade garden.

Mississippi River Wakerobin

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Liliidae

Order

Liliales

Family

Liliaceae Juss. - Lily family

Genus

Trillium L. - trillium

Species

Trillium foetidissimum J.D. Freeman - Mississippi River wakerobin

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