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Canadian Lousewort

Pedicularis canadensis

Also listed as Enslenia bibracteata, Nelensia bibracteata

Also known as Canada Lousewort, Canadian Wood Betony, Canada Wood-betony

herbaceousβ›… part shadeπŸ’§πŸ’§ moderate water❄ Hardy: Zone 2b – Zone 8b

Climate Match for your location

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A native woodland perennial with distinctive reddish or purple-tinged flowers held on upright spikes. It thrives in shaded forest settings and attracts pollinators to the garden.

Why grow it

Canadian lousewort fills a niche in shaded woodland gardens where many flowering perennials struggle, offering early-season color when few natives bloom. Compared to other shade-tolerant woodland species, it provides reliable pollinator attraction with minimal maintenance once established in appropriate conditions. Its preference for moist, well-draining soils in dappled to full shade makes it useful for areas too wet or dark for many alternative perennials.

Watch out for

This species can be slow to establish from seed and may take several years to reach mature flowering size, so patience is required during the establishment phase. It performs poorly in hot, dry locations or in heavy clay soils without significant amendment, and may decline if subjected to extended drought even after establishment.

Overview

Form
Upright
Growth Rate
moderate
Size
0.5–1.3β€² tall Γ— 0.5–1β€² wide
Dormancy
deciduous
Family
Orobanchaceae
Medicinal

Native to the United States

Native Range

Eastern North America

Native to: Alabama, Arkansas, Colorado, Connecticut, District of Columbia, Delaware, Florida, Georgia, Iowa, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, North Carolina, North Dakota, Nebraska, New Hampshire, New Jersey, New Mexico, New York, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Virginia, Vermont, Wisconsin, West Virginia

Seasonality

Bloom Season

J
F
M
A
M
J
J
A
S
O
N
D

Season of Interest

SpringSummer

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Companion Planting

Plants well with