Known to be toxic - Toxic to mammals if ingested.
Source: OWSL
Plant Names
Trillium grandiflorum
White Trillium
Trille blanc
Synonyms
great white trillium
large-flowered trillium
snow trillium
white wakerobin
trille à grande fleur
trille grandiflore
Plant Characteristics
Bloom Colour: White
Bloom Period: Apr - Jun
Max Height: 1.0 feet
Max Width: 1.2 feet (spreads by rhizome)
Light Condition:
Less than 2 or 3 hours of direct sun a day
Soil conditions:
Tolerates medium soil condition
Less than 2 or 3 hours of direct sun a day
Tolerates medium soil condition
Lifespan:
Perennial
plants that will come back year after year
(Spring Ephemeral)
Gardener Experience:
Does not spread uncontrollably
Spreads by rhizome
Does not spread uncontrollably
Spreads by rhizome
Landscape Uses:
Suitable for woodland gardens
Suitable for woodland gardens
Ecological Benefits:
No ecological benefits information available.
Tolerates:
Deer resistant
Rabbit resistant
Tolerates limestone conditions
Tolerates juglone conditions
Tolerates transplantation
Deer resistant
Rabbit resistant
Tolerates limestone conditions
Tolerates juglone conditions
Tolerates transplantation
Special Features and Considerations:
This plant causes skin rashes
This plant causes skin rashes
Seed and plant distribution status
No seeds available for this plant.
We currently accept seeds for this plant
Plant Location
Native to Ottawa region: Yes
Distribution according to VASCAN
Ephemeral
Native
Introduced
Excluded
Extirpated
Doubtful
Absent
Canadensis
Thrives in Ecozones
- Boreal Plains
- Mixed Wood Plains
Ecological Benefits
Butterflies Supported by Trillium grandiflorum
-
Crambodes talidiformis
Verbena -
Euplexia benesimilis
American Angle Shades
Specialized Bees Supported by Trillium grandiflorum
No bee data available for this plant.
Complementary Plants
- Anemone parviflora
Small-flowered Anemone
Anémone à petites fleurs - Erythronium albidum
White Trout Lily
Érythrone blanchâtre - Gaultheria procumbens
Eastern Teaberry
Thé des bois - Trillium erectum
Red Trillium
Trille rouge - Viola sororia
Woolly Blue Violet
Violette parente
Substitute For Non-Native Plants
- Plantago (Non-Native Plantain)
- Lamium (Dead nettle)
- Ajuga reptans (Bugleweed)
- Lysimachia nummularia (Creeping Jenny)
- Iridaceae (Crocus)
- Scilla siberica (Siberian Squill)
- Salvia (Non-Native Sage)
- Hyacinthus (Non-Native Hyacynth)
- Petunia (Non-Native Petunias)
- Myosotis sylvatica (Forget-me-not)
- Phlox subulata (Moss Phlox)
Sowing Information
Download Seed Envelope Labels (PDF)
- Sowing depth: Sow just below surface
- Sow anytime
- Stratification duration: 0 days
- Notes: Double dormancy.
Harvesting and Seed Sharing
- Harvest start month: July
- Harvesting indicator:
- Berries are ripen and easily fall off or have fallen off
- Harvesting:
- Squeeze berries to extract seeds, wash with soapy water, rinse throroughly
- Seed viability test:
- No test needed before donating
- Packaging measure: Six (6) seeds (eyeball)
- Seed storage:
- Keep moist and cool, in a ziploc bag, in the fridge, with the seeds in soil, paper towel or coffee filter, until donation
- Cultivar: Yes, do not donate unless you know source, and there are no known cultivars in your garden or at proximity
- No harvesting video available at this time.
Toxicity Notes
Toxic to mammals if ingested.