Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Tree
Origin
Europe, Russia
South-Central United States, Texas, Mexico
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Cedars
Number of Varieties
245
0
40000
👆🏻
Habitat
Cold Regions, stream banks
River side, Woodlands
USDA Hardiness Zone
6-117-9
0
99
👆🏻
AHS Heat Zone
-
9-6
Sunset Zone
21,22
A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21
Habit
Upright/Erect
Oval or Rounded
Plant Size
Minimum Height
20.00 cm910.00 cm
0
3900
👆🏻
Minimum Width
90.00 cm760.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Light Pink
White, Ivory
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Orange Red
Red, Light Green, Tan
Leaf Color in Spring
Red, Green, Copper
Green, Yellow green
Leaf Color in Summer
Green, Blue Green
Green, Dark Green
Leaf Color in Fall
Green, Blue Green
Yellow, Green, Yellow green
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
-
Shape
Leaf Shape
Oval
Elliptic, toothed
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
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 Summer, Early Fall
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Pollution, Drought
Where to Plant?
Container, Ground
Ground
How to Plant?
Root Division, Transplanting
Seedlings, Stem Planting
Plant Maintenance
Low
Medium
Watering Plants
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Keep the ground moist but not water-logged, Requires a lot of watering, Requires watering in the growing season, Water Deeply
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
Pruning
Cut or pinch the stems, Remove dead leaves
Prune to stimulate growth, Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove hanging branches
Fertilizers
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
All-Purpose Liquid Fertilizer, fertilize in growing season, Nitrogen
Pests and Diseases
Aphids, Stem spot
Bacteria wilt, Beetles, Red blotch
Plant Tolerance
Shallow soil, Sun
Salt, Shade areas
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
Fine
Foliage Sheen
Glossy
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Ants, Butterflies, pollinators
Butterflies
Allergy
Antibacterial, Peripheral Edema
Skin rash
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, Amazing growth rate, Erosion control, Food for birds, Food for insects, Nesting sites for birds, Prevent Soil Erosion
Plant Benefits
Medicinal Uses
Asthma, Diarrhea, Obesity, Osteoarthritis
-
Part of Plant Used
Leaves, Twigs
Stem, Tree trunks
Other Uses
Used for its medicinal properties
Used as firewood, Used for woodware, Used in construction
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Feature Plant, Shade Trees, Street Trees, Topiary / Bonsai / Espalier
Botanical Name
Symphytum asperum
ULMUS crassifolia
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
Cedar Elm
In Hindi
Blackwort
देवदार एल्म
In German
Blackwort
Cedar Elm
In French
Blackwort
Cedar Elm
In Spanish
Blackwort
Cedar Elm
In Greek
Blackwort
Cedar Elm
In Portuguese
Blackwort
Cedar Elm
In Polish
Blackwort
Cedar Elm
In Latin
Blackwort
Ulmus Cedar
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Lamiales
Rosales
Family
Boraginaceae
Ulmaceae
Genus
Symphytum
Ulmus
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
Boraginoideae
-
Number of Species
353
1
27800
👆🏻