Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Cactus
Origin
Europe, Russia
Central America, South America, Brazil
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Columnar Cacti
Number of Varieties
250
0
40000
👆🏻
Habitat
Cold Regions, stream banks
Desert, Temperate Regions
USDA Hardiness Zone
6-1112-15
0
99
👆🏻
AHS Heat Zone
-
12-10
Sunset Zone
21,22
12, 13, 21, 22, 23, 24
Habit
Upright/Erect
Upright/Erect
Plant Size
Minimum Height
20.00 cm60.00 cm
0
3900
👆🏻
Minimum Width
90.00 cm30.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Light Pink
Red, Orange, Salmon
Flower Color Modifier
Bicolor
-
Fruit Color
Orange Red
-
Leaf Color in Spring
Red, Green, Copper
-
Leaf Color in Summer
Green, Blue Green
-
Leaf Color in Fall
Green, Blue Green
-
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
-
Shape
Leaf Shape
Oval
Succulent
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun
Growth Rate
Medium
-
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
Spring, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Drought
Where to Plant?
Container, Ground
Container, Ground, Pot
How to Plant?
Root Division, Transplanting
Seedlings, Stem Cutting
Plant Maintenance
Low
Medium
Watering Plants
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Reduce watering in winter
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
Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
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
Fertilizers
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
Fertilize the soil before planting, slow-release fertilizers
Pests and Diseases
Aphids, Stem spot
Bacterial Stem Rot, fungus, Mealybugs, Spider mites
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
Bold
Foliage Sheen
Glossy
-
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Ants, Butterflies, pollinators
Hummingbirds
Allergy
Antibacterial, Peripheral Edema
-
Uses
Aesthetic Uses
Cottage Garden, Showy Purposes
Landscape Designing, Showy Purposes, Wild gardens
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
Whole plant
Other Uses
Used for its medicinal properties
Florist trade and landscaping, Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Container, Houseplant, Rock Garden, Wall
Botanical Name
Symphytum asperum
Cleistocactus strausii
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
silver torch or wooly torch
In Hindi
Blackwort
Cleistocactus strausii
In German
Blackwort
Cleistocactus strausii
In French
Blackwort
Cleistocactus strausii
In Spanish
Blackwort
Cleistocactus strausii
In Greek
Blackwort
cleistocactus strausii
In Portuguese
Blackwort
Cleistocactus strausii
In Polish
Blackwort
cleistocastus strausii
In Latin
Blackwort
Cleistocactus strausii
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Lamiales
Caryophyllales
Family
Boraginaceae
Cactaceae
Genus
Symphytum
Cleistocactus
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Core eudicots, Eudicots
Tribe
-
Trichocereeae
Subfamily
Boraginoideae
Cactoideae
Number of Species
3520
1
27800
👆🏻