Life Span
Perennial
Perennial
Type
Tree
Broadleaf Evergreen
Origin
Eastern Asia
Europe, Russia
Types
-
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Number of Varieties
202
0
40000
👆🏻
Habitat
Temperate Regions
Cold Regions, stream banks
USDA Hardiness Zone
6-86-11
0
99
👆🏻
AHS Heat Zone
8-2
-
Sunset Zone
A3, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
21,22
Habit
Oval or Rounded
Upright/Erect
Plant Size
Minimum Height
300.00 cm20.00 cm
0
3900
👆🏻
Minimum Width
370.00 cm90.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Purple
White, Light Pink
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Red, Green
Orange Red
Leaf Color in Spring
Green, Light Green
Red, Green, Copper
Leaf Color in Summer
Green
Green, Blue Green
Leaf Color in Fall
Yellow, Gold
Green, Blue Green
Leaf Color in Winter
-
Red, Dark Green, Burgundy, Bronze
Shape
Leaf Shape
Oblong or Lanceolate
Oval
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun, Partial shade
Growth Rate
Slow
Medium
Type of Soil
Clay, 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, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Shade areas
-
Where to Plant?
Ground
Container, Ground
How to Plant?
Grafting, Seedlings
Root Division, Transplanting
Plant Maintenance
Medium
Low
Watering Plants
Watering Requirements
Average Water Needs
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
Clay, Loam, Sand
Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun, Partial shade
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
All-Purpose Liquid Fertilizer
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
Pests and Diseases
Fungal Diseases, Squirrels
Aphids, Stem spot
Plant Tolerance
Drought
Shallow soil, Sun
Flowers
Insignificant
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
Fine
Medium
Foliage Sheen
Matte
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Squirrels
Ants, Butterflies, pollinators
Allergy
Oral Allergy, Throat itching
Antibacterial, Peripheral Edema
Uses
Aesthetic Uses
Beautification, Landscape Designing
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
Potassium, Rich in Iron, Vitamin A, Vitamin B, Vitamin C
Asthma, Diarrhea, Obesity, Osteoarthritis
Part of Plant Used
Seeds
Leaves, Twigs
Other Uses
Food for animals, Used as a nutritious food item, Used As Food, Used for its medicinal properties, Used for Landscaping
Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Feature Plant, Foundation, Mixed Border, Rock Garden / Wall, Topiary / Bonsai / Espalier
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Botanical Name
Castanea sativa
Symphytum asperum
Common Name
Sweet Chestnut, Chestnut
Comfrey,Black Root, Blackwort, Bruisewort
In Hindi
शाहबलूत का फल
Blackwort
In German
Esskastanie
Blackwort
In French
châtaignier
Blackwort
In Spanish
Castaña dulce
Blackwort
In Greek
Sweet Chestnut
Blackwort
In Portuguese
Castanheiro
Blackwort
In Polish
słodki Chestnut
Blackwort
In Latin
Dulce Chestnut
Blackwort
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Sapindales
Lamiales
Family
Aceraceae
Boraginaceae
Genus
Acer
Symphytum
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
-
Boraginoideae
Number of Species
935
1
27800
👆🏻