North America Native Plant

Towering Lousewort

Botanical name: Pedicularis bracteosa var. flavida

USDA symbol: PEBRF

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Pedicularis flavida Pennell (PEFL10)   

Towering Lousewort: A Stunning Yellow Native for Mountain Gardens If you’ve ever wandered through the mountain meadows of the Pacific Northwest and spotted tall spikes of cheerful yellow flowers rising above the landscape, you might have encountered the towering lousewort (Pedicularis bracteosa var. flavida). This native perennial forb brings a ...

Towering Lousewort: A Stunning Yellow Native for Mountain Gardens

If you’ve ever wandered through the mountain meadows of the Pacific Northwest and spotted tall spikes of cheerful yellow flowers rising above the landscape, you might have encountered the towering lousewort (Pedicularis bracteosa var. flavida). This native perennial forb brings a unique charm to specialized gardens, though it’s definitely not your typical easy-care garden plant.

What Makes Towering Lousewort Special?

Towering lousewort is a distinctive variety of the bracted lousewort, scientifically known as Pedicularis bracteosa var. flavida (also called Pedicularis flavida Pennell in some references). As a native perennial forb, this plant lacks woody stems but returns year after year from its root system, making it a permanent fixture in suitable garden settings.

What sets this variety apart is its beautiful yellow flowers, which appear in dense terminal spikes during the growing season. The hooded, tubular flowers have an almost whimsical appearance that adds vertical interest and a pop of sunny color to any planting.

Where Does It Grow Naturally?

This native beauty calls the western United States home, specifically thriving in California, Oregon, and Washington. You’ll typically find it in mountain meadows, forest clearings, and alpine environments where cool, moist conditions prevail.

Should You Plant Towering Lousewort in Your Garden?

Here’s where things get interesting – and a bit challenging. While towering lousewort is undeniably beautiful and supports native ecosystems, it’s not exactly beginner-friendly. This plant has some quirky requirements that make it better suited for experienced native plant gardeners or those specifically creating mountain-style landscapes.

Reasons to consider planting it:

  • Supports native pollinators, particularly bees
  • Adds authentic regional character to Pacific Northwest gardens
  • Provides unique vertical interest with distinctive flower spikes
  • Contributes to biodiversity in native plant gardens
  • Hardy in USDA zones 4-8

Reasons you might want to think twice:

  • Can be parasitic on other plant roots, potentially affecting neighboring plants
  • Requires very specific growing conditions that are hard to replicate
  • Challenging to establish and maintain in typical garden settings
  • May not thrive in lowland or warmer climate gardens

Growing Conditions and Care

If you’re up for the challenge, towering lousewort thrives in conditions that mimic its mountain home. Think cool, moist, and well-draining – a combination that can be tricky to achieve in many garden settings.

Ideal conditions include:

  • Partial shade to filtered sunlight
  • Consistently moist but well-draining soil
  • Cool temperatures, especially during summer months
  • Rocky or gravelly soil that mimics alpine conditions
  • Good air circulation

Best Garden Settings

Towering lousewort works best in specialized garden settings rather than traditional perennial borders. Consider it for:

  • Alpine or rock gardens
  • Native plant collections
  • Mountain meadow recreations
  • Cool, shaded woodland edges
  • Rain gardens or naturally moist areas

Planting and Care Tips

Successfully growing towering lousewort requires patience and attention to detail. Here are some tips for the adventurous gardener:

  • Source plants from reputable native plant nurseries
  • Plant in spring when soil is workable but still cool
  • Ensure excellent drainage while maintaining consistent moisture
  • Mulch lightly with gravel or small stones rather than organic mulch
  • Avoid fertilizing – these plants prefer lean soils
  • Be prepared for a slow establishment period
  • Consider companion planting with other native mountain species

The Bottom Line

Towering lousewort is a beautiful native plant that can be a rewarding addition to the right garden setting. While it’s definitely not the easiest plant to grow, dedicated native plant gardeners in suitable climates may find it worth the effort for its unique beauty and ecological benefits. If you’re new to native gardening or live in a warm climate, you might want to start with easier native alternatives and work your way up to this mountain beauty.

Remember, successful native gardening is often about matching the right plant to the right conditions – and towering lousewort definitely has some specific preferences!

Towering Lousewort

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

Scrophulariales

Family

Scrophulariaceae Juss. - Figwort family

Genus

Pedicularis L. - lousewort

Species

Pedicularis bracteosa Benth. - bracted lousewort

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