Life Span
Perennial
Perennial
Type
Cactus or Succulent
Broadleaf Evergreen
Origin
North America, Southwestern United States, Mexico
Europe, Russia
Types
Colville's Barrel Cactus, Long-spined Barrel Cactus, Barrel Cactus
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Number of Varieties
292
0
40000
👆🏻
Habitat
limestone outcrops, Rocky areas, Semi desert
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
Oval or Rounded
Upright/Erect
Plant Size
Minimum Height
40.00 cm20.00 cm
0
3900
👆🏻
Minimum Width
13.00 cm90.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow, Magenta
White, Light Pink
Flower Color Modifier
-
Bicolor
Fruit Color
Pink, Red
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
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Slow
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, Late Spring, Early Summer
Late Spring, Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
-
Where to Plant?
Container, Ground, Pot
Container, Ground
How to Plant?
Seedlings
Root Division, Transplanting
Plant Maintenance
Medium
Low
Watering Plants
Watering Requirements
Needs good drainage, Needs very little water, Water carefully
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, Partial Sun
Full Sun, Partial Sun, Partial shade
Pruning
-
Cut or pinch the stems, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
Pests and Diseases
Red blotch
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
-
Ants, Butterflies, pollinators
Allergy
-
Antibacterial, Peripheral Edema
Uses
Aesthetic Uses
Showy Purposes
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
Flowers
Leaves, Twigs
Other Uses
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
ECHINOCACTUS horizonthalonius
Symphytum asperum
Common Name
Devilshead, Turk's head cactus, Blue barrel cactus, Eagle's claw, Horse maimer, Horse crippler, Visnaga meloncillo
Comfrey,Black Root, Blackwort, Bruisewort
In Hindi
Blue barrel cactus
Blackwort
In German
Blau Faßkaktus
Blackwort
In French
Bleu barrel cactus
Blackwort
In Spanish
biznaga Azul
Blackwort
In Greek
Μπλε βαρέλι κάκτος
Blackwort
In Portuguese
cacto de tambor azul
Blackwort
In Polish
Niebieski baryłkę kaktus
Blackwort
In Latin
Blue Cactus
Blackwort
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Caryophyllales
Lamiales
Family
Cactaceae
Boraginaceae
Genus
Echinocactus
Symphytum
Clade
Angiosperms, Core eudicots, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
Cacteae
-
Subfamily
Cactaceae
Boraginoideae
Number of Species
2935
1
27800
👆🏻