Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Tree
Origin
Europe, Russia
Eastern Asia
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Ulmus parvifolia 'Emer II', Ulmus parvifolia 'True Green'
Habitat
Cold Regions, stream banks
Woodland Garden Canopy
USDA Hardiness Zone
6-11
5-9
Sunset Zone
21,22
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
Upright/Erect
Flower Color
White, Light Pink
Red
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Orange Red
Tan, Brown
Leaf Color in Spring
Red, Green, Copper
Green
Leaf Color in Summer
Green, Blue Green
Dark Green
Leaf Color in Fall
Green, Blue Green
Yellow, Red, Green
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
-
Leaf Shape
Oval
Elliptic, toothed
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Type of Soil
Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring, Early Summer, Summer
Fall
Where to Plant?
Container, Ground
Ground
How to Plant?
Root Division, Transplanting
Seedlings
Plant Maintenance
Low
Medium
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Average Water Needs
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil pH
Acidic, Neutral
Acidic, Neutral, Alkaline
Soil Type
Loam, Sand
Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
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
6-12-12 or 5-10-10
Pests and Diseases
Aphids, Stem spot
Canker, Leaf spot, Rots, Wilts
Plant Tolerance
Shallow soil, Sun
Drought
Flowers
Showy
Insignificant
Flower Petal Number
Single
Single
Foliage Texture
Medium
Fine
Foliage Sheen
Glossy
Glossy
Attracts
Ants, Butterflies, pollinators
Birds
Allergy
Antibacterial, Peripheral Edema
Moderate Allergen
Aesthetic Uses
Cottage Garden, Showy Purposes
Bonsai, Showy Purposes
Beauty Benefits
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
-
Environmental Uses
Air purification, Fixes Nitrogen
Air purification
Medicinal Uses
Asthma, Diarrhea, Obesity, Osteoarthritis
Antidote, Demulcent, Diuretic, Expectorant, Febrifuge, Hypnotic
Part of Plant Used
Leaves, Twigs
Fruits, Inner Bark, Leaves
Other Uses
Used for its medicinal properties
Can be grown in a shelter belt, Used as a thickener in soups
Used As Indoor Plant
No
Yes
Used As Outdoor Plant
Yes
Yes
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Container, Feature Plant, Mixed Border, Shade Trees, Street Trees, Topiary / Bonsai / Espalier
Botanical Name
Symphytum asperum
ULMUS parvifolia
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
Chinese Elm, Lacebark Elm
In Hindi
Blackwort
Lacebark Elm
In German
Blackwort
Lacebark Elm
In French
Blackwort
Lacebark Elm
In Spanish
Blackwort
Lacebark Elm
In Greek
Blackwort
Lacebark Elm
In Portuguese
Blackwort
Lacebark Elm
In Polish
Blackwort
Lacebark Elm
In Latin
Blackwort
Lacebark Elm
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Family
Boraginaceae
Ulmaceae
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Subfamily
Boraginoideae
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Season and Care of Comfrey and Lacebark Elm
Season and care of Comfrey and Lacebark Elm is important to know. While considering everything about Comfrey and Lacebark Elm Care, growing season is an essential factor. Comfrey season is Spring, Summer, Fall and Winter and Lacebark Elm season is Spring, Summer, Fall and Winter. The type of soil for Comfrey is Loam, Sand and for Lacebark Elm is Loam, Sand while the PH of soil for Comfrey is Acidic, Neutral and for Lacebark Elm is Acidic, Neutral, Alkaline.
Comfrey and Lacebark Elm Physical Information
Comfrey and Lacebark Elm physical information is very important for comparison. Comfrey height is 20.00 cm and width 90.00 cm whereas Lacebark Elm height is 460.00 cm and width 300.00 cm. The color specification of Comfrey and Lacebark Elm are as follows:
Comfrey flower color: White and Light Pink
Comfrey leaf color: Red, Green and Copper
Lacebark Elm flower color: Red
- Lacebark Elm leaf color: Green
Care of Comfrey and Lacebark Elm
Care of Comfrey and Lacebark Elm include pruning, fertilizers, watering etc. Comfrey pruning is done Cut or pinch the stems and Remove dead leaves and Lacebark Elm pruning is done Remove damaged leaves, Remove dead branches and Remove dead leaves. In summer Comfrey needs Lots of watering and in winter, it needs Average Water. Whereas, in summer Lacebark Elm needs Lots of watering and in winter, it needs Average Water.