Life Span
Perennial
Perennial
Type
Cactus
Broadleaf Evergreen
Origin
Central America, South America, Brazil
Europe, Russia
Types
Columnar Cacti
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Number of Varieties
502
0
40000
👆🏻
Habitat
Desert, Temperate Regions
Cold Regions, stream banks
USDA Hardiness Zone
12-156-11
0
99
👆🏻
AHS Heat Zone
12-10
-
Sunset Zone
12, 13, 21, 22, 23, 24
21,22
Habit
Upright/Erect
Upright/Erect
Plant Size
Minimum Height
60.00 cm20.00 cm
0
3900
👆🏻
Minimum Width
30.00 cm90.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Orange, Salmon
White, Light Pink
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
Succulent
Oval
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
-
Medium
Type of Soil
Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Spring, Summer
Late Spring, Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
-
Where to Plant?
Container, Ground, Pot
Container, Ground
How to Plant?
Seedlings, Stem Cutting
Root Division, Transplanting
Plant Maintenance
Medium
Low
Watering Plants
Watering Requirements
Reduce watering in winter
Allow to dry out slightly between watering, Water daily during 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, Alkaline
Acidic, Neutral
Soil Type
Loam, Sand
Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun
Full Sun, Partial Sun, Partial shade
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Cut or pinch the stems, Remove dead leaves
Fertilizers
Fertilize the soil before planting, slow-release fertilizers
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
Pests and Diseases
Bacterial Stem Rot, fungus, Mealybugs, Spider mites
Aphids, Stem spot
Plant Tolerance
Drought
Shallow soil, Sun
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
Bold
Medium
Foliage Sheen
-
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Hummingbirds
Ants, Butterflies, pollinators
Allergy
-
Antibacterial, Peripheral Edema
Uses
Aesthetic Uses
Landscape Designing, Showy Purposes, Wild gardens
Cottage Garden, Showy Purposes
Beauty Benefits
-
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification, Fixes Nitrogen
Plant Benefits
Medicinal Uses
-
Asthma, Diarrhea, Obesity, Osteoarthritis
Part of Plant Used
Whole plant
Leaves, Twigs
Other Uses
Florist trade and landscaping, Used as Ornamental plant
Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Houseplant, Rock Garden, Wall
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Botanical Name
Cleistocactus strausii
Symphytum asperum
Common Name
silver torch or wooly torch
Comfrey,Black Root, Blackwort, Bruisewort
In Hindi
Cleistocactus strausii
Blackwort
In German
Cleistocactus strausii
Blackwort
In French
Cleistocactus strausii
Blackwort
In Spanish
Cleistocactus strausii
Blackwort
In Greek
cleistocactus strausii
Blackwort
In Portuguese
Cleistocactus strausii
Blackwort
In Polish
cleistocastus strausii
Blackwort
In Latin
Cleistocactus strausii
Blackwort
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Caryophyllales
Lamiales
Family
Cactaceae
Boraginaceae
Genus
Cleistocactus
Symphytum
Clade
Angiosperms, Core eudicots, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
Trichocereeae
-
Subfamily
Cactoideae
Boraginoideae
Number of Species
2035
1
27800
👆🏻