Marsh Blue Violet

Viola cucullata

Native to:
Canada, Labrador, Prince Edward I., United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Violaceae
Genus:
Viola
Species:
Viola cucullata
USDA Symbol:
VICU

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
25 cm
Light Requirements:
Full Sun,Part Shade,Shade
Drought Tolerance:
Low
Bloom Months:
apr,may,jun
Bloom Colors:
blue, violet, purple
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

⚠️Diana fritillary (Speyeria diana)

Garden & Ecology Notes

Wildlife Value:
butterflies, bees, birds
Deer Resistant:
Yes

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
Prefers wetland edges and moist meadows

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Germination Time:
14–60 days
Notes:
Seeds require light for germination and benefit from cold stratification. Germination can be erratic.

The above propagation data sourced from Claude AI

Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Cold-moist stratification for 60 days.

Notes: Light required for germination; do not cover seed.

Source: Claude AI