Prickly Comfrey

Symphytum asperum

Prickly Comfrey

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Boraginaceae
Genus:
Symphytum
Species:
Symphytum asperum

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
3-4 ft
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
mar, apr, may, jun, jul, aug
Bloom Colors:
blue

Native Range

United States: Alaska, California, Connecticut, Massachusetts, Maryland, Maine, Michigan, Minnesota, New York, Ohio, Oregon, Vermont, Washington, Wisconsin, Canada: British Columbia, Manitoba, New Brunswick, Nova Scotia, Ontario, Prince Edward Island, Quebec, Saskatchewan

Reported Fauna Sightings

Bees: Two-spotted bumble bee (Bombus bimaculatus), Two-spotted bumble bee (Bombus bimaculatus)

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
native to moist, fertile areas in Caucasus