• Photo of Symphytum officinale (Symphytum officinales)

Plant Profile: Symphytum officinale

Taxonomy: Symphytum officinale

Names

Boneset, Comfrey, Common Comfrey, Consound, Cultivated Comfrey, Knitbone, Quaker Comfrey, Slippery-Root, True Comfrey

  • Photo of Symphytum officinale (Symphytum officinales)

Phonetic Spelling:sim-FY-tum oh-fiss-ih-NAH-lee

Genus:Symphytum

Species:officinale

Family:Boraginaceae

Comfrey is a term that encompasses several species of plants known for their historical use as a medicinal herb, particularly for treating both external and internal injuries. However, it is now considered unsafe for consumption.

This plant thrives in conditions ranging from full sun to partial shade, preferring well-drained, moist, and nutrient-rich soil. During the hot summers in North Carolina, it benefits from some shade. Comfrey is resistant to deer and can withstand drought as well as thrive in clay soil. Due to its tendency to spread easily and regenerate from any remaining root fragments after removal, cultivating it in large containers can help manage its growth effectively.

Symphytum officinale Feature Summary

Symphytum officinale Image Gallery

Tags

#showy flowers
#full sun tolerant
#drought tolerant
#purple flowers
#medicinal
#tuberous
#cottage garden
#herb garden
#moist soil
#well-drained soil
#deer resistant
#herbaceous perennial
#division
#coarse
#rich soil
#colonies
#naturalizes
#wildflower garden
#clumping
#naturalized area
#clay soils tolerant
#partial shade tolerant
#herb
#meadows
#woodlands
#container plants

Similar Plants

Symphytum officinale Feature Summary

Attributes
Medicinal use for injuries
Perennial
Seed
Division
Root Cutting
Flowers
Bluebell-like purple flowers that grow in clusters. Blooms in late spring and early summer, May to June.
Pink
Purple/Lavender
White
Spring
Summer
Leaves
Large, coarse leaves covered in hair. The base of the upper leaves run down the length of the stem.
Ovate
Lanceolate
> 6 inches
3-6 inches
Stem
Stems are winged.
Hairy (pubescent)
Poisonous to Humans
Ingestion can lead to liver damage, lung damage, and cancer. Considered possibly safe to use externally.
Pyrrolizidine alkaloids
Seeds
Leaves
Stems
Sap/Juice
Flowers
Bark
Fruits
Roots
Whole Plant Traits
Herbaceous Perennial
Wildflower
Spreading
Clumping
Coarse
Cultural Conditions
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Good Drainage
Moist
Occasionally Dry
Coastal
Mountains
Piedmont
4a
4b
5b
5a
6a
6b
7a
7b
8b
8a
Clay
High Organic Matter
Loam (Silt)
Landscape
Drought Tolerant Garden
Cottage Garden
Drought
Deer
Dry Soil
Container
Woodland
Meadow
Naturalized Area

Symphytum officinale Attributes

Symphytum officinale: Uses (Ethnobotany)

Medicinal use for injuries

Symphytum officinale: Country Or Region Of Origin

Europe, W. Asia

Symphytum officinale: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Symphytum officinale: Recommended Propagation Strategy

Division
Grafting
Layering
Leaf Cutting
Root Cutting
Seed
Stem Cutting

Symphytum officinale Flowers

Symphytum officinale: Flower Description

Bluebell-like purple flowers that grow in clusters. Blooms in late spring and early summer, May to June.

Symphytum officinale: Flower Color

filter_vintage
Pink
filter_vintage
Purple/Lavender
filter_vintage
White

Symphytum officinale: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Symphytum officinale: Flower Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long Bloom Season
Long-lasting
Showy

Symphytum officinale: Flower Bloom Time

Winter
Spring
Summer
Fall

Symphytum officinale: Flower Shape

Bell
Cross
Crown
Cup
Dome
Funnel
Irregular
Lipped
Radial
Saucer
Star
Trumpet
Tubular
Urn
Wheel

Symphytum officinale Leaves

Symphytum officinale: Leaf Description

Large, coarse leaves covered in hair. The base of the upper leaves run down the length of the stem.

Symphytum officinale: Leaf Color

spa
Green

Symphytum officinale: Leaf Type

Compound (Pinnately , Bipinnately, Palmately)
Fronds
Needles
Sheath
Simple

Symphytum officinale: Leaf Arrangement

Alternate
Opposite
Other/more complex
Rosulate
Whorled

Symphytum officinale: Leaf Shape

Acicular
Auriculate
Cordate
Cuneate
Deltoid
Elliptical
Filiform
Lanceolate
Linear
Oblanceolate
Oblong
Obovate
Obtuse
Orbicular
Ovate
Palmasect
Palmatifid
Peltate
Pinnatifid
Pinnatisect
Reniform
Rhomboidal
Spatulate
Subcordate
Subulate

Symphytum officinale: Leaf Margin

Crenate
Crenulate
Dentate
Denticulate
Doubly Crenate
Doubly Dentate
Doubly Serrate
Entire
Lobed
Serrate
Sinuate
Undulate

Symphytum officinale: Hairs Present

No
Yes

Symphytum officinale: Leaf Length

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Symphytum officinale: Leaf Feel

Fleshy
Glossy
Leathery
Papery
Prickly
Rough
Rubbery
Slippery
Smooth
Soft
Velvety
Waxy

Symphytum officinale: Leaf Width

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Symphytum officinale Stem

Symphytum officinale: Stem Description

Stems are winged.

Symphytum officinale: Stem Color

grass
Green

Symphytum officinale: Stem Is Aromatic

No
Yes

Symphytum officinale: Stem Surface

Corky Ridges
Covered with a powdery bloom (glaucous)
Dull
Hairy (pubescent)
Polished
Smooth (glabrous)

Symphytum officinale Poisonous to Humans

Symphytum officinale: Poison Symptoms

Ingestion can lead to liver damage, lung damage, and cancer. Considered possibly safe to use externally.

Symphytum officinale: Poison Toxic Principle

Pyrrolizidine alkaloids

Symphytum officinale: Poison Severity

High
Low
Medium

Symphytum officinale: Causes Contact Dermatitis

No
Yes

Symphytum officinale: Poison Part

Bark
Flowers
Fruits
Leaves
Roots
Sap/Juice
Seeds
Stems

Symphytum officinale Whole Plant Traits

Symphytum officinale: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Symphytum officinale: Habit/Form

Arching
Ascending
Broad
Cascading
Climbing
Clumping
Columnar
Conical
Creeping
Dense
Erect
Horizontal
Irregular
Mounding
Multi-stemmed
Multi-trunked
Open
Oval
Prostrate
Pyramidal
Rounded
Spreading
Vase
Weeping

Symphytum officinale: Maintenance

Low
Medium
High

Symphytum officinale: Texture

Fine
Medium
Coarse

Symphytum officinale Cultural Conditions

Symphytum officinale: Light

Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)

Symphytum officinale: Soil Drainage

Frequent Standing Water
Good Drainage
Moist
Occasional Flooding
Occasionally Dry
Occasionally Wet
Very Dry

Symphytum officinale: Available Space To Plant

12 inches-3 feet
12-24 feet
24-60 feet
3 feet-6 feet
6-feet-12 feet
Less than 12 inches
more than 60 feet

Symphytum officinale: NC Region

Coastal
Mountains
Piedmont

Symphytum officinale: USDA Plant Hardiness Zone

thermostat
4a
thermostat
4b
thermostat
5a
thermostat
5b
thermostat
6a
thermostat
6b
thermostat
7a
thermostat
7b
thermostat
8a
thermostat
8b

Symphytum officinale: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Symphytum officinale Landscape

Symphytum officinale: Landscape Theme

Asian Garden
Butterfly Garden
Children's Garden
Cottage Garden
Cutting Garden
Drought Tolerant Garden
Edible Garden
English Garden
Fairy Garden
Garden for the Blind
Native Garden
Nighttime Garden
Pollinator Garden
Rain Garden
Rock Garden
Shade Garden
Water Garden
Winter Garden

Symphytum officinale: Resistance To Challenges

Black Walnut
Compaction
Deer
Diseases
Drought
Dry Soil
Erosion
Fire
Foot Traffic
Heat
Heavy Shade
Humidity
Insect Pests
Pollution
Poor Soil
Rabbits
Salt
Slugs
Squirrels
Storm damage
Urban Conditions
Voles
Wet Soil
Wind

Symphytum officinale: Landscape Location

Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland