Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Flowering Plants
Origin
Europe, Russia
North-Central United States, Central United States, Western United States, Texas
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Blue Toadflax, Old-Field Toadflax
Number of Varieties
230
0
40000
👆🏻
Habitat
Cold Regions, stream banks
Cultivated Beds
USDA Hardiness Zone
6-113-9
0
99
👆🏻
AHS Heat Zone
-
9-1
Sunset Zone
21,22
1a, 1b, 2a, 2b, 3a, 3b, 10
Habit
Upright/Erect
Upright/Erect
Plant Size
Minimum Height
20.00 cm61.00 cm
0
3900
👆🏻
Minimum Width
90.00 cm25.40 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Light Pink
Pink, Light Blue, Lavender
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Orange Red
-
Leaf Color in Spring
Red, Green, Copper
Light Green, Blue Green, Gray Green
Leaf Color in Summer
Green, Blue Green
Blue Green, Gray Green
Leaf Color in Fall
Green, Blue Green
Blue Green, Gray Green
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
-
Shape
Leaf Shape
Oval
Oval to egg shaped
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer
Growing Conditions
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Growth Rate
Medium
Fast
Type of Soil
Loam, Sand
Clay, Loam
The pH of Soil
Acidic, Neutral
Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring, Early Summer, Summer
Late Spring, Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Drought
Where to Plant?
Container, Ground
Ground
How to Plant?
Root Division, Transplanting
Cuttings, Divison, Seedlings
Plant Maintenance
Low
Medium
Watering Plants
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Average Water Needs, Do Not over Water
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral
Neutral, Alkaline
Soil Type
Loam, Sand
Clay, Loam
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
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
use all-purpose fertilizers
Pests and Diseases
Aphids, Stem spot
Foliar disease, Root rot, Spider mites
Plant Tolerance
Shallow soil, Sun
Drought
Flowers
Showy
Showy
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
Bumblebees
Allergy
Antibacterial, Peripheral Edema
Depression, High blood cholestrol, Pain
Uses
Aesthetic Uses
Cottage Garden, Showy Purposes
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
Analgesic, Febrifuge, Stomachic
Part of Plant Used
Leaves, Twigs
Leaves, Root
Other Uses
Used for its medicinal properties
-
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Rock Garden / Wall, Wildflower
Botanical Name
Symphytum asperum
PENSTEMON grandiflorus
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
Large Beardtongue, Shell-leaf Penstemon, Wild Snapdragon
In Hindi
Blackwort
Wild Snapdragon
In German
Blackwort
Wilde Snapdragon
In French
Blackwort
Snapdragon sauvage
In Spanish
Blackwort
Salvaje Snapdragon
In Greek
Blackwort
άγρια Snapdragon
In Portuguese
Blackwort
Selvagem Snapdragon
In Polish
Blackwort
Dziki Snapdragon
In Latin
Blackwort
Phlox Ferae
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Lamiales
Scrophulariales
Family
Boraginaceae
Scrophulariaceae
Genus
Symphytum
Penstemon
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Tribe
-
-
Subfamily
Boraginoideae
Scrophularioideae
Number of Species
3540
1
27800
👆🏻