Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Perennial
Origin
Europe, Russia
Eastern Europe, Russia, Siberia
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
-
Number of Varieties
210
0
40000
👆🏻
Habitat
Cold Regions, stream banks
Grassland, Pastures, Swamps
USDA Hardiness Zone
6-113-8
0
99
👆🏻
AHS Heat Zone
-
9-1
Sunset Zone
21,22
A2, A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23
Habit
Upright/Erect
Clump-Forming
Plant Size
Minimum Height
20.00 cm90.00 cm
0
3900
👆🏻
Minimum Width
90.00 cm60.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Light Pink
Blue Violet
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Orange Red
-
Leaf Color in Spring
Red, Green, Copper
Green
Leaf Color in Summer
Green, Blue Green
Green
Leaf Color in Fall
Green, Blue Green
Green
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
Light Green
Shape
Leaf Shape
Oval
Long Narrow
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Summer
Growing Conditions
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun, Partial shade
Growth Rate
Medium
Fast
Type of Soil
Loam, Sand
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Average
Bloom Time
Late Spring, Early Summer, Summer
Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Drought
Where to Plant?
Container, Ground
Ground
How to Plant?
Root Division, Transplanting
Seedlings
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 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
Average
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun, Partial shade
Pruning
Cut or pinch the stems, Remove dead leaves
Remove damaged leaves, Remove dead leaves
Fertilizers
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
All-Purpose Liquid Fertilizer
Pests and Diseases
Aphids, Stem spot
Red blotch
Plant Tolerance
Shallow soil, Sun
Drought
Flowers
✔
✘
✔
✘
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
Butterflies
Allergy
Antibacterial, Peripheral Edema
-
Uses
Aesthetic Uses
Cottage Garden, Showy Purposes
Beautification, Bouquets, Landscape Designing, Showy Purposes
Beauty Benefits
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Fixes Nitrogen
Air purification
Plant Benefits
Medicinal Uses
Asthma, Diarrhea, Obesity, Osteoarthritis
-
Part of Plant Used
Leaves, Twigs
Flowers, Leaves
Other Uses
Used for its medicinal properties
Decoration Purposes, Showy Purposes, Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Cutflower, Feature Plant, Foundation, Mixed Border
Botanical Name
Symphytum asperum
IRIS sibirica 'Caesar's Brother'
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
Siberian Iris
In Hindi
Blackwort
Caesar's Brother Siberian Iris
In German
Blackwort
Caesars Bruder Sibirische Iris
In French
Blackwort
Frère Iris de Sibérie de César
In Spanish
Blackwort
De César Hermano Siberian Iris
In Greek
Blackwort
Καίσαρα Αδελφός Σιβηρίας Iris
In Portuguese
Blackwort
Irmão de César Siberian Iris
In Polish
Blackwort
Cezara Brat syberyjski Iris
In Latin
Blackwort
Caesaris Frater Siberian Iris
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
-
Class
Magnoliopsida
Liliopsida
Order
Lamiales
Asparagales
Family
Boraginaceae
Iridaceae
Genus
Symphytum
Abelia
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Monocots
Tribe
-
-
Subfamily
Boraginoideae
Iridoideae
Number of Species
3535
1
27800
👆🏻