Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Tree
Origin
Europe, Russia
North America, Canada
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Celtis africana, Celtis australis, Celtis bungeana
Number of Varieties
270
0
40000
👆🏻
Habitat
Cold Regions, stream banks
bottomlands, limestone outcrops
USDA Hardiness Zone
6-112-9
0
99
👆🏻
AHS Heat Zone
-
9-1
Sunset Zone
21,22
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
Spreading
Plant Size
Minimum Height
20.00 cm1,220.00 cm
0
3900
👆🏻
Minimum Width
90.00 cm1,220.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Light Pink
Green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Orange Red
Purple
Leaf Color in Spring
Red, Green, Copper
Light Green
Leaf Color in Summer
Green, Blue Green
Dark Green
Leaf Color in Fall
Green, Blue Green
Light Yellow
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
-
Shape
Leaf Shape
Oval
Toothed
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Fall
Growing Conditions
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun
Growth Rate
Medium
Medium
Type of Soil
Loam, Sand
Clay, Loam
The pH of Soil
Acidic, Neutral
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Average
Bloom Time
Late Spring, Early Summer, Summer
Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Drought, Heat Tolerance, Salt, Shade areas
Where to Plant?
Container, Ground
Ground
How to Plant?
Root Division, Transplanting
Grafting, Seedlings
Plant Maintenance
Low
Medium
Watering Plants
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Needs 2-3 times watering per week
In Summer
Lots of watering
Average Water
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral
Acidic, Neutral, Alkaline
Soil Type
Loam, Sand
Clay, Loam
Soil Drainage Capacity
Well drained
Average
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun
Pruning
Cut or pinch the stems, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove tight V-branching crotches
Fertilizers
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
All-Purpose Liquid Fertilizer, Apply 10-10-10 amount, organic fertlizers
Pests and Diseases
Aphids, Stem spot
Black sooty mold, Fungal Diseases, Powdery mildew, Red blotch, woolly aphid
Plant Tolerance
Shallow soil, Sun
Shade areas
Flowers
Showy
Insignificant
Flower Petal Number
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
Birds, Insects
Allergy
Antibacterial, Peripheral Edema
-
Uses
Aesthetic Uses
Cottage Garden, Showy Purposes
-
Beauty Benefits
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
Slow downs aging
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Fixes Nitrogen
Food for animals, Food for birds
Plant Benefits
Medicinal Uses
Asthma, Diarrhea, Obesity, Osteoarthritis
Colic, Diarrhea, Dysentry, Menstrual Disorders, Sore throat
Part of Plant Used
Leaves, Twigs
Fruits, Pulp, Seeds, Wood
Other Uses
Used for its medicinal properties
Food for animals, Used as a nutritious food item
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Screening / Wind Break, Shade Trees, Street Trees
Botanical Name
Symphytum asperum
CELTIS occidentalis
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
Common Hackberry, Hackberry
In Hindi
Blackwort
HACKBERRY
In German
Blackwort
Hackberry
In French
Blackwort
micocoulier
In Spanish
Blackwort
almez
In Greek
Blackwort
hackberry
In Portuguese
Blackwort
hackberry
In Polish
Blackwort
hackberry
In Latin
Blackwort
Hackberry
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Lamiales
Urticales
Family
Boraginaceae
Ulmaceae
Genus
Symphytum
Celtis
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
Boraginoideae
-
Number of Species
3570
1
27800
👆🏻