Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Broadleaf Evergreen
Origin
Europe, Russia
Eastern Asia, China, Japan, Korea
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Cleyera japonica ‘Tricolor’
Number of Varieties
21
0
40000
👆🏻
Habitat
Cold Regions, stream banks
Warmer regions
USDA Hardiness Zone
6-116-10
0
99
👆🏻
AHS Heat Zone
-
-
Sunset Zone
21,22
21,22
Habit
Upright/Erect
Oval or Rounded
Plant Size
Minimum Height
20.00 cm2,240.00 cm
0
3900
👆🏻
Minimum Width
90.00 cm150.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Light Pink
White, Yellow
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Orange Red
Yellow, Red, Bronze
Leaf Color in Spring
Red, Green, Copper
Red, Dark Green, Bronze
Leaf Color in Summer
Green, Blue Green
Dark Green
Leaf Color in Fall
Green, Blue Green
Dark Green
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
Dark Green, Burgundy, Bronze
Shape
Leaf Shape
Oval
Ovate
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, Full Shade
Growth Rate
Medium
Slow
Type of Soil
Loam, Sand
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring, Early Summer, Summer
Late Spring, Early Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Drought, Salt
Where to Plant?
Container, Ground
Container, Ground, Pot
How to Plant?
Root Division, Transplanting
Tip cutting
Plant Maintenance
Low
Medium
Watering Plants
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Water 1 in. per week during the active growing period, Water more frequently during periods of extreme drought
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
Soil Type
Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun, Partial shade, Full Shade
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
All-Purpose Liquid Fertilizer
Pests and Diseases
Aphids, Stem spot
Red blotch
Plant Tolerance
Shallow soil, Sun
Drought
Flowers
Showy
Insignificant
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
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Ants, Butterflies, pollinators
Bees, pollinators
Allergy
Antibacterial, Peripheral Edema
Mild Allergen
Uses
Aesthetic Uses
Cottage Garden, Showy Purposes
Cottage Garden, Formal Garden, Informal Hedge, Landscape Designing, Mixed Border, Used for making hedges, Used in parkland
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
extracted oil, Leaves, Seeds, Stem
Other Uses
Used for its medicinal properties
Used as a building material, Used as fuel
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Container, Feature Plant, Foundation, Hedges, Houseplant, Mixed Border, Screening, Wind Break, Topiary, Bonsai, Espalier
Botanical Name
Symphytum asperum
TERNSTROEMIA gymnanthera 'Conthera'
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
Cleyera Japonica, Sakaki Tree, Japanese ternstroemia
In Hindi
Blackwort
Cleyera
In German
Blackwort
Sakaki
In French
Blackwort
Cleyera
In Spanish
Blackwort
Cleyera
In Greek
Blackwort
Cleyera
In Portuguese
Blackwort
Cleyera
In Polish
Blackwort
Cleyera
In Latin
Blackwort
Ternstroemia Gymnanthera
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Tracheophyta
Class
Magnoliopsida
Magnoliopsida
Order
Lamiales
Theales
Family
Boraginaceae
Theaceae
Genus
Symphytum
Cleyera
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Tribe
-
Freziereae
Subfamily
Boraginoideae
-
Number of Species
3518
1
27800
👆🏻