Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Grass
Origin
Europe, Russia
Northeastern United States, Mid-Atlantic United States, Southeastern United States, South-Central United States, Texas, Mexico
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Turtlehead, Leadwort, Aster
Number of Varieties
21
0
40000
👆🏻
Habitat
Cold Regions, stream banks
bottomlands, Thickets, Woods
USDA Hardiness Zone
6-115-9
0
99
👆🏻
AHS Heat Zone
-
9 -5
Sunset Zone
21,22
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
Arching/Fountain-shaped
Plant Size
Minimum Height
20.00 cm60.00 cm
0
3900
👆🏻
Minimum Width
90.00 cm50.80 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Light Pink
Brown, Green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Orange Red
-
Leaf Color in Spring
Red, Green, Copper
Light Green
Leaf Color in Summer
Green, Blue Green
Light Green
Leaf Color in Fall
Green, Blue Green
Lemon yellow
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
Gold, Tan, Bronze
Shape
Leaf Shape
Oval
Needle like
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun, Partial shade
Growth Rate
Medium
Medium
Type of Soil
Loam, Sand
Clay, Loam
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring, Early Summer, Summer
Late Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
-
Where to Plant?
Container, Ground
Ground
How to Plant?
Root Division, Transplanting
Divison, From Rhizomes, Seedlings
Plant Maintenance
Low
Medium
Watering Plants
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Keep ground moist, Requires regular watering
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral
Acidic, Neutral
Soil Type
Loam, Sand
Clay, Loam
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun, Partial shade
Pruning
Cut or pinch the stems, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
Apply 10-10-10 amount, Fertilize every year
Pests and Diseases
Aphids, Stem spot
Pests and diseases free
Plant Tolerance
Shallow soil, Sun
-
Flowers
Showy
Insignificant
Flower Petal Number
Single
Single
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Medium
Medium
Foliage Sheen
Glossy
Matte
Evergreen
✔
✘
✔
✘
Invasive
Sometimes
Sometimes
Self-Sowing
✔
✘
✔
✘
Attracts
Ants, Butterflies, pollinators
Rodents
Allergy
Antibacterial, Peripheral Edema
-
Uses
Aesthetic Uses
Cottage Garden, Showy Purposes
-
Beauty Benefits
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Fixes Nitrogen
Air purification
Plant Benefits
Medicinal Uses
Asthma, Diarrhea, Obesity, Osteoarthritis
-
Part of Plant Used
Leaves, Twigs
Whole plant
Other Uses
Used for its medicinal properties
Used As Food
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Feature Plant, Mixed Border, Wildflower
Botanical Name
Symphytum asperum
CHASMANTHIUM latifolium
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
Indian Woodoats, Northern Sea Oats
In Hindi
Blackwort
Northern Sea Oats
In German
Blackwort
Northern Seehafer
In French
Blackwort
Northern Sea Oats
In Spanish
Blackwort
Avena del mar del Norte
In Greek
Blackwort
Βόρεια Θάλασσα Βρώμη
In Portuguese
Blackwort
Northern Sea Oats
In Polish
Blackwort
Północna część Morza Owies
In Latin
Blackwort
Avene mari septentrionali
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Liliopsida
Order
Lamiales
Cyperales
Family
Boraginaceae
Poaceae
Genus
Symphytum
Uniola
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Commelinids, Monocots
Tribe
-
Chasmanthieae
Subfamily
Boraginoideae
Panicoideae
Number of Species
352
1
27800
👆🏻