Canadian White Violet

Viola canadensis

Native to:
Canada, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Violaceae
Genus:
Viola
Species:
Viola canadensis
USDA Symbol:
VICA4

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
40 cm
Light Requirements:
Shade
Drought Tolerance:
Medium
Bloom Months:
apr,may,jun,jul
Bloom Colors:
white, violet
Ground Cover:
Yes

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)
Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Keystone Species Ranking

Caterpillar Keystone:
★★★☆☆ Butterfly & moth species supported by this genus (NWF)
Pollen Specialist Bee Keystone:
★★★★★ Native pollen specialist bee species supported by this genus (NWF)

Host Plant for Caterpillars

Atlantis fritillary (Speyeria atlantis), Great Spangled Fritillary (Speyeria cybele)

Reported Fauna Sightings

Butterflies:🛑West Virginia white (Pieris virginiensis)

Garden & Ecology Notes

Wildlife Value:
butterflies, bees, birds
Fragrant:
Yes

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
good drainage preferred
Moisture:
consistently moist
Notes:
prefers shaded woodland environments

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Germination Time:
14–56 days
Notes:
Seeds require light for germination. Germination can be erratic and may occur over an extended period.

The above propagation data sourced from Claude AI

Pre-treatment: Mix the seeds with an equal amount of moist perlite or vermiculite. Put mixture into a sealed container and proceed with at least three months of moist cold stratification in a cool dry place. Cold store until planted (up to 3 years).

Establishment: Seed capsules are explosive and seed is difficult to collect. Seed is collected by hand from locally native plants within the eastern central Upper Peninsula. Flowers from June through August. Seed is harvested from August to October. Seeds in a capsule. The plant prefers deciduous woods in partial to full shade. Soil should be neutral to slightly acidic with abundant humus and average moisture.

Source: npn.rngr.net

ORGHPS Germination Guide: Expose to fluctuating outdoor winter temps incl. freezing for 3 months. Increase light/temp in spring.

Source: Ontario Rock Garden & Hardy Plant Society