Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Tree
Origin
Europe, Russia
North America
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Bergmann's Elm, Chestnut-leafed Elm, Hangzhou Elm
Habitat
Cold Regions, stream banks
Woodland Garden Canopy
USDA Hardiness Zone
6-11
3-9
Sunset Zone
21,22
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21
Habit
Upright/Erect
Upright/Erect
Flower Color
White, Light Pink
Green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Orange Red
Tan
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
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Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun
Type of Soil
Loam, Sand
Loam
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Well drained
Average
Bloom Time
Late Spring, Early Summer, Summer
Early Spring
Where to Plant?
Container, Ground
Ground
How to Plant?
Root Division, Transplanting
Budding, Grafting, Seedlings, Semi-hardwood cuttings, Softwood cuttings
Plant Maintenance
Low
Medium
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Average Water Needs, Do Not over Water, Requires regular watering
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil pH
Acidic, Neutral
Acidic, Neutral
Soil Type
Loam, Sand
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 dead or diseased plant parts, Remove deadheads
Fertilizers
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
Complete balanced fertilizer, fertilize in spring
Pests and Diseases
Aphids, Stem spot
Red blotch
Plant Tolerance
Shallow soil, Sun
Pollution
Flower Petal Number
Single
Single
Foliage Texture
Medium
Medium
Foliage Sheen
Glossy
Matte
Attracts
Ants, Butterflies, pollinators
Birds, Butterflies
Allergy
Antibacterial, Peripheral Edema
Pollen
Aesthetic Uses
Cottage Garden, Showy Purposes
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Beauty Benefits
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
Good for skin and hair
Environmental Uses
Air purification, Fixes Nitrogen
Air purification, Nesting sites for birds, Shadow Tree
Medicinal Uses
Asthma, Diarrhea, Obesity, Osteoarthritis
Antispasmodic, Astringent, Birthing aid, Haemostatic, Salve
Part of Plant Used
Leaves, Twigs
Bark, Fibre, Leaves
Other Uses
Used for its medicinal properties
Container, String, Used for woodware, Used in paper industry
Used As Indoor Plant
No
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Feature Plant, Shade Trees, Street Trees
Botanical Name
Symphytum asperum
ULMUS americana 'Augustine'
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
American Elm, Augustine Elm
In Hindi
Blackwort
American Elm Tree
In German
Blackwort
Amerikanische Ulme
In French
Blackwort
Américaine Elm Tree
In Spanish
Blackwort
Olmo Americano Árbol
In Greek
Blackwort
American Elm Tree
In Portuguese
Blackwort
Árvore de olmo americano
In Polish
Blackwort
Amerykańska Elm Tree
In Latin
Blackwort
Latin ulmo
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Family
Boraginaceae
Ulmaceae
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Subfamily
Boraginoideae
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Importance of Comfrey and American Elm
Want to have the most appropriate plant for your garden? You might want to know the importance of Comfrey and American Elm. Basically, these two plants vary in many aspects. Compare Comfrey and American Elm as they differ in many characteristics such as their life, care, benefits, facts, etc. Every gardener must at least have the slightest clue about the plants he wants to plant in his garden. Compare their benefits, which differ in many ways like facts and uses. The medicinal use of Comfrey is Asthma, Diarrhea, Obesity and Osteoarthritis whereas of American Elm is Antispasmodic, Astringent, Birthing aid, Haemostatic and Salve. Comfrey has beauty benefits as follows: Acne, Beautiful Skin, Reduce Bruises and Remove blemishes while American Elm has beauty benefits as follows: Acne, Beautiful Skin, Reduce Bruises and Remove blemishes.
Compare Facts of Comfrey vs American Elm
How to choose the best garden plant for your garden depending upon its facts? Here garden plant comparison will help you to solve this query. Compare the facts of Comfrey vs American Elm and know which one to choose. As garden plants have benefits and other uses, allergy is also a major drawback of plants for some people. Allergic reactions of Comfrey are Antibacterial and Peripheral Edema whereas of American Elm have Pollen respectively. Having a fruit bearing plant in your garden can be a plus point of your garden. Comfrey has showy fruits and American Elm has no showy fruits. Also Comfrey is not flowering and American Elm is flowering. You can compare Comfrey and American Elm facts and facts of other plants too.