Marsh Violet

Viola palustris

Native to:
Austria, Azores, Baltic States, Belarus, Belgium, Bulgaria, Canada, Corse, Czechia-Slovakia, Denmark, Finland, Føroyar, France, Germany, Greece, Greenland, Hungary, Iceland, Ireland, Italy, Labrador, Morocco, Netherlands, Norway, NW. Balkan Pen., Poland, Portugal, Romania, Russia, Spain, Sweden, Switzerland, Ukraine, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Violaceae
Genus:
Viola
Species:
Viola palustris
USDA Symbol:
VIPA4

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
20 cm
Light Requirements:
Part Shade
Drought Tolerance:
Low
Bloom Months:
apr,may,jun,jul
Bloom Colors:
white, pale violet, lilac
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

Great Spangled Fritillary (Speyeria cybele), Mormon fritillary (Speyeria mormonia)

Garden & Ecology Notes

Wildlife Value:
butterflies, bees

Soil Requirements

Soil Type:
rich, moist, peaty soil
pH:
4.5 - 6.5 (acidic to slightly acidic)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
Common in bogs and wet meadows

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Germination Time:
14–42 days
Notes:
Seeds require light for germination; sow on surface and keep consistently moist.

The above propagation data sourced from Claude AI

Pre-treatment: Seeds were cold stratified for 90 days

Source: npn.rngr.net