Brook wakerobin
Pseudotrillium rivale
Last reviewed: October 2026
Brook wakerobin (Pseudotrillium rivale) is a perennial forb native to CA, OR. It blooms in March, April, and May. The flowers draw bees and flies.
Toxicity unknown
Brook wakerobin (Pseudotrillium rivale) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
shade
Water
medium
Size
4"–8" H × 6"–10" W
Bloom
Mar, Apr, May
Native to
CA, OR
Pollinators
bees, flies
Before you buy
Your city may pay you to plant this
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Browse plants for this ecoregion
A small, rare woodland trillium with mottled leaves and delicate white flowers flushed with pink veining, held just above the foliage in early spring. It is a slow-spreading, prized addition to a shaded rock garden.
Growing Brook wakerobin
Grow Brook wakerobin in shade and medium water. Mature plants reach 4 to 8 inches tall and spread 6 to 10 inches wide.
Wildlife value
The early flowers offer a modest nectar source for woodland bees and flies emerging in spring.
Common questions
- How much sun does Brook wakerobin need?
- Brook wakerobin grows best in shade conditions.
- When does Brook wakerobin bloom?
- Brook wakerobin blooms in March, April, and May.
- Where is Brook wakerobin native?
- Brook wakerobin (Pseudotrillium rivale) is native to CA, OR, per vouchered herbarium specimen records and regional native plant society lists.
- What pollinators does Brook wakerobin attract?
- Brook wakerobin draws bees and flies.
Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
If something looks wrong
Common plant problems, and what to check first
These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow Brook wakerobin? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.