North America Native Plant

Smallflower Wakerobin

Botanical name: Trillium albidum parviflorum

USDA symbol: TRALP

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Trillium parviflorum Soukup (TRPA11)   

Smallflower Wakerobin: A Rare Pacific Northwest Native Worth Protecting If you’re drawn to understated woodland beauties, the smallflower wakerobin (Trillium albidum parviflorum) might just capture your heart. This delicate Pacific Northwest native brings quiet elegance to shade gardens, though its rarity makes it a plant that deserves our special attention ...

Rare plant alert!

Region: Conservation status by state

Status: S2S3: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ 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 ⚘

Smallflower Wakerobin: A Rare Pacific Northwest Native Worth Protecting

If you’re drawn to understated woodland beauties, the smallflower wakerobin (Trillium albidum parviflorum) might just capture your heart. This delicate Pacific Northwest native brings quiet elegance to shade gardens, though its rarity makes it a plant that deserves our special attention and care.

What Makes Smallflower Wakerobin Special

True to its name, this perennial forb produces smaller flowers than its more famous trillium cousins, but what it lacks in size, it makes up for in charm. The pristine white, three-petaled blooms emerge in spring above the plant’s signature whorl of three leaves, creating a classic trillium silhouette that woodland gardeners adore.

As a native species found only in Oregon and Washington, smallflower wakerobin represents the unique botanical heritage of the Pacific Northwest. It’s also known by its synonym Trillium parviflorum, so don’t be confused if you see both names used.

A Conservation Concern

Here’s where we need to have an important conversation: smallflower wakerobin has a Global Conservation Status of S2S3, meaning its populations are imperiled to vulnerable. This rarity status means that while this plant can be a wonderful addition to appropriate gardens, we must be extremely thoughtful about how we source it.

If you choose to grow smallflower wakerobin, only purchase from reputable nurseries that propagate their own plants or clearly state their material is ethically sourced. Never dig plants from the wild – this threatens already vulnerable populations.

Why Grow Smallflower Wakerobin?

Despite its rarity concerns, there are compelling reasons to include this native in your garden when sourced responsibly:

  • Supports local ecosystems as a true Pacific Northwest native
  • Provides nectar and pollen for small flies and beetles
  • Creates authentic woodland habitat in shade gardens
  • Offers subtle, sophisticated beauty rather than flashy displays
  • Contributes to native plant conservation through responsible cultivation

Growing Conditions and Care

Smallflower wakerobin thrives in conditions that mimic its natural woodland habitat. Think cool, moist, and shady – basically the opposite of a sunny perennial border.

Ideal growing conditions include:

  • Partial to full shade
  • Moist, well-draining soil
  • Acidic to neutral pH
  • Cool temperatures
  • USDA hardiness zones 6-8

Planting and Care Tips

Growing smallflower wakerobin requires patience – this isn’t a plant for gardeners seeking instant gratification. Plant rhizomes in fall, giving them time to establish before spring growth begins.

Once planted, resist the urge to move or divide your trilliums frequently. They prefer to be left undisturbed and can be slow to recover from transplant shock. A layer of organic mulch helps retain the consistent moisture they crave while protecting their shallow root systems.

The key to success is mimicking natural forest conditions: dappled light, consistent moisture (but not soggy soil), and rich, organic matter.

Garden Design Ideas

Smallflower wakerobin shines in woodland gardens, native plant landscapes, and naturalized shade areas. Pair it with other Pacific Northwest natives like wild ginger, coral bells, or native ferns for an authentic regional look.

Its subtle beauty makes it perfect for gardens where you want to reward close observation rather than create bold statements. Consider planting it along woodland paths where visitors can appreciate its delicate flowers up close.

The Bottom Line

Smallflower wakerobin offers dedicated shade gardeners a chance to grow a truly special Pacific Northwest native while contributing to plant conservation. Its rarity means this isn’t a plant to choose lightly, but for gardeners committed to ethical sourcing and patient cultivation, it can be a rewarding addition to woodland landscapes.

Remember: with rare plants comes great responsibility. Choose your source carefully, and you’ll be supporting both your garden’s biodiversity and the conservation of this vulnerable species.

Smallflower 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 albidum J.D. Freeman - giant white wakerobin

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