Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Shrub
Origin
Europe, Russia
China
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
-
Number of Varieties
22
0
40000
👆🏻
Habitat
Cold Regions, stream banks
Hills, Lower slopes, open Woodlands
USDA Hardiness Zone
6-114-8
0
99
👆🏻
AHS Heat Zone
-
8-1
Sunset Zone
21,22
A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21
Habit
Upright/Erect
Upright/Erect
Plant Size
Minimum Height
20.00 cm240.00 cm
0
3900
👆🏻
Minimum Width
90.00 cm180.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Light Pink
Light Green
Flower Color Modifier
Bicolor
-
Fruit Color
Orange Red
Brown, Light Green, Lime Green
Leaf Color in Spring
Red, Green, Copper
Green, Light Green
Leaf Color in Summer
Green, Blue Green
Green, Light Green
Leaf Color in Fall
Green, Blue Green
Red
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
-
Shape
Leaf Shape
Oval
Lobed
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, 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, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring, Early Summer, Summer
Late Spring, Early Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Drought, Salt
Where to Plant?
Container, Ground
Ground, Pot
How to Plant?
Root Division, Transplanting
Seedlings
Plant Maintenance
Low
Low
Watering Plants
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Average Water Needs, Requires regular watering, Requires watering in the growing season
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, Alkaline
Soil Type
Loam, Sand
Clay, Loam, Sand
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
-
Fertilizers
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
No fertilizers needed
Pests and Diseases
Aphids, Stem spot
Red blotch, Spider mites
Plant Tolerance
Shallow soil, Sun
Drought, Salt
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
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Ants, Butterflies, pollinators
Birds
Allergy
Antibacterial, Peripheral Edema
Asthma
Uses
Aesthetic Uses
Cottage Garden, Showy Purposes
Landscape Designing
Beauty Benefits
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Fixes Nitrogen
Air purification, Forms dense stands, Nesting sites for birds, No fertilizer, pesticides, or herbicides needed, Prevent Soil Erosion, Shadow Tree, Windbreak
Plant Benefits
Medicinal Uses
Asthma, Diarrhea, Obesity, Osteoarthritis
-
Part of Plant Used
Leaves, Twigs
Bark, Stem
Other Uses
Used for its medicinal properties
Used as firewood, Used for woodware, Used in biomass, Used in construction, Used in Furniture, Wood is used for ship building, Wood is used in construction, Wood log is used in making fences
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Cutflower, Feature Plant, Foundation, Hedges, Mixed Border, Screening, Wind Break
Botanical Name
Symphytum asperum
EUONYMUS phellomanus
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
Cork Oak
In Hindi
Blackwort
कॉर्क ट्री
In German
Blackwort
Cork Tree
In French
Blackwort
Arbre de Cork
In Spanish
Blackwort
Árbol de corcho
In Greek
Blackwort
Cork Tree
In Portuguese
Blackwort
Cork Tree
In Polish
Blackwort
Cork Tree
In Latin
Blackwort
Cork ligno
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Anthophyta
Class
Magnoliopsida
Dicotyledonae
Order
Lamiales
Fagales
Family
Boraginaceae
Celastraceae
Genus
Symphytum
Quercus
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Tribe
-
Mirini
Subfamily
Boraginoideae
Mirinae
Number of Species
3550
1
27800
👆🏻