Northern Bog Violet
Viola nephrophylla
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