Northern Bog Violet

Viola nephrophylla

Northern Bog Violet

RG Johnsson

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Violaceae
Genus:
Viola
Species:
Viola nephrophylla

Growth Characteristics

Life Cycle:
Annual | Perennial
Growth Habit:
Forb/herb
Height:
6 in - 1 ft
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
mar, apr, may, jun, jul, aug
Bloom Colors:
Purple, Violet

Native Range

United States: Arkansas, Arizona, California, Colorado, Connecticut, Iowa, Idaho, Illinois, Indiana, Kansas, Louisiana, Massachusetts, Maine, Michigan, Minnesota, Missouri, Montana, North Dakota, Nebraska, New Hampshire, New Mexico, Nevada, New York, Ohio, Oklahoma, Oregon, Pennsylvania, South Dakota, Texas, Utah, Vermont, Washington, Wisconsin, West Virginia, Wyoming, Canada: Alberta, British Columbia, Manitoba, New Brunswick, Nova Scotia, Northwest Territories, Nunavut, Ontario, Prince Edward Island, Quebec, Saskatchewan, Yukon

Keystone Species Ranking

Caterpillar Keystone:
★★★☆☆ Based on number of butterfly and moth species using this genus as host plant (Source: National Wildlife Federation)
Bee Keystone:
★☆☆☆☆ Based on number of native bee species using this genus for pollen and nectar (Source: National Wildlife Federation)

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
consistently moist
Notes:
prefers habitats like meadows and streambanks

Germination Information

Pre-treatment: In late fall, place the flats in heavy garbage sacks and leave outside from November to late February where temperatures range from -20 C to 0 C. The flats should be buried in several centimeters of snow for most of the winter.

Establishment: Live mature plants were field harvested from native stands in late spring while soil was still saturated. In 3 to 4 months the plants produced cleistogamous flowers. Capsules dehisced and spread seed on the soil surface a few days later.

Source: npn.rngr.net