Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Grass
Origin
Europe, Russia
Japan
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Not Available
Number of Varieties
Not Available
Habitat
Cold Regions, stream banks
meadows, Riverbanks, Wet Woods
USDA Hardiness Zone
6-11
5-9
AHS Heat Zone
Not Available
9 - 5
Sunset Zone
21,22
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
Clump-Forming
Flower Color
White, Light Pink
Blue Violet
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Not Available, Orange Red
Purple
Leaf Color in Spring
Red, Green, Copper
Yellow, Green, Light Green
Leaf Color in Summer
Green, Blue Green
Light Green
Leaf Color in Fall
Green, Blue Green
Orange, Yellow green, Orange Red
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
Green, Dark Green, Not Available
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun, Partial shade
Type of Soil
Loam, Sand
Loam
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring, Early Summer, Summer
Late Summer, Early Fall, Fall
Tolerances
Not Available
Dry soil, Shallow soil
Where to Plant?
Container, Ground
Ground
How to Plant?
Root Division, Transplanting
From Rhizomes
Plant Maintenance
Low
Medium
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Keep ground moist
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Consistently
In Winter
Average Water
Adequately
Soil pH
Acidic, Neutral
Acidic, Neutral
Soil Type
Loam, Sand
Loam
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun, Partial shade
Pruning
Cut or pinch the stems, Remove dead leaves
Prune grass to maintain level, Prune if you want to improve plant shape
Fertilizers
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
organic fertlizers
Pests and Diseases
Aphids, Stem spot
Not Available
Plant Tolerance
Shallow soil, Sun
Shade areas, Shallow soil, Wet Site
Flowers
Showy
Insignificant
Flower Petal Number
Single
Single
Foliage Texture
Medium
Medium
Foliage Sheen
Glossy
Matte
Attracts
Ants, Butterflies, pollinators
Ants, Beetles, Caterpillar
Allergy
Antibacterial, Peripheral Edema
allergic conjunctivitis, Asthma, Rash
Aesthetic Uses
Cottage Garden, Showy Purposes
Beautification, Ground Cover
Beauty Benefits
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
Not Available
Environmental Uses
Air purification, Fixes Nitrogen
Provides ground cover, Shadow Tree
Medicinal Uses
Asthma, Diarrhea, Obesity, Osteoarthritis
Acne, Aging, Laxative
Part of Plant Used
Leaves, Twigs
Leaves
Other Uses
Used for its medicinal properties
Can be made into a herbal tea, Showy Purposes
Used As Indoor Plant
No
Sometimes
Used As Outdoor Plant
Yes
Yes
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Container, Edging, Mixed Border, Rock Garden / Wall, Water Gardens
Botanical Name
Symphytum asperum
HAKONECHLOA macra 'Aureola'
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
Golden Japanese Forest Grass, Hakone Grass
In Hindi
Blackwort
जापानी वन घास
In German
Blackwort
Japanische gras
In French
Blackwort
Forêt herbe japonaise
In Spanish
Blackwort
forestales hierba japonesa
In Greek
Blackwort
Ιαπωνικά γρασίδι δάσος
In Portuguese
Blackwort
floresta grama japonês
In Polish
Blackwort
Japoński las lato
In Latin
Blackwort
Forest gramina Italica
Phylum
Magnoliophyta
Angiosperms
Class
Magnoliopsida
Monocots
Family
Boraginaceae
Poaceae
Genus
Symphytum
Hachanechloa
Clade
Angiosperms, Eudicots, Rosids
Angiosperms
Tribe
Not Available
Not Available
Subfamily
Boraginoideae
Arundinariinae
Number of Species
Not Available
Not Available
Season and Care of Comfrey and Japanese Forest Grass
Season and care of Comfrey and Japanese Forest Grass is important to know. While considering everything about Comfrey and Japanese Forest Grass Care, growing season is an essential factor. Comfrey season is Spring, Summer, Fall and Winter and Japanese Forest Grass season is Spring, Summer, Fall and Winter. The type of soil for Comfrey is Loam, Sand and for Japanese Forest Grass is Loam while the PH of soil for Comfrey is Acidic, Neutral and for Japanese Forest Grass is Acidic, Neutral.
Comfrey and Japanese Forest Grass Physical Information
Comfrey and Japanese Forest Grass physical information is very important for comparison. Comfrey height is 20.00 cm and width 90.00 cm whereas Japanese Forest Grass height is 30.50 cm and width 30.50 cm. The color specification of Comfrey and Japanese Forest Grass are as follows:
Comfrey flower color: White and Light Pink
Comfrey leaf color: Red, Green and Copper
Japanese Forest Grass flower color: Blue Violet
- Japanese Forest Grass leaf color: Yellow, Green and Light Green
Care of Comfrey and Japanese Forest Grass
Care of Comfrey and Japanese Forest Grass include pruning, fertilizers, watering etc. Comfrey pruning is done Cut or pinch the stems and Remove dead leaves and Japanese Forest Grass pruning is done Prune grass to maintain level and Prune if you want to improve plant shape. In summer Comfrey needs Lots of watering and in winter, it needs Average Water. Whereas, in summer Japanese Forest Grass needs Lots of watering and in winter, it needs Adequately.