Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Tree
Origin
Europe, Russia
North America, Northeastern United States, Mid-Atlantic United States, Southeastern United States, Canada
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
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Habitat
Cold Regions, stream banks
Deciduous forests, Forest margins
USDA Hardiness Zone
6-11
5-8
Sunset Zone
21,22
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17
Habit
Upright/Erect
Oval or Rounded
Flower Color
White, Light Pink
Gold, Light Green, Light Yellow, White
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Orange Red
Light Green, Sienna, Chocolate
Leaf Color in Spring
Red, Green, Copper
Green
Leaf Color in Summer
Green, Blue Green
Green
Leaf Color in Fall
Green, Blue Green
Yellow, Yellow green, Gold
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
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Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Type of Soil
Loam, Sand
Clay, Loam
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring, Early Summer, Summer
Early Summer
Where to Plant?
Container, Ground
Ground
How to Plant?
Root Division, Transplanting
Seedlings, Stem Planting
Plant Maintenance
Low
Medium
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Needs very little water
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil pH
Acidic, Neutral
Acidic, Neutral
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
Cut back all stems to the same height, Pinch or prune as they grow to promote branching and bushiness, Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
14-14-14 Fertilizer, Compost, General purpose liquid or granular fertilizer
Pests and Diseases
Aphids, Stem spot
Chestnut Blight
Plant Tolerance
Shallow soil, Sun
Drought
Flowers
Showy
Insignificant
Flower Petal Number
Single
-
Foliage Texture
Medium
Medium
Foliage Sheen
Glossy
Matte
Attracts
Ants, Butterflies, pollinators
Bees, Birds, Deers
Allergy
Antibacterial, Peripheral Edema
conjunctivitis, Vomiting
Aesthetic Uses
Cottage Garden, Showy Purposes
Showy Purposes
Beauty Benefits
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
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Environmental Uses
Air purification, Fixes Nitrogen
Air purification, Wildlife
Medicinal Uses
Asthma, Diarrhea, Obesity, Osteoarthritis
Arthritis, Cough, Sore throat, Swelling
Part of Plant Used
Leaves, Twigs
Sap, Wood
Other Uses
Used for its medicinal properties
Decorative veneers, flooring, paneling, Used in Furniture, Used in pulpwood and lumber production
Used As Indoor Plant
No
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Edible, Feature Plant, Shade Trees
Botanical Name
Symphytum asperum
CASTANEA dentata
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
American Chestnut
In Hindi
Blackwort
अमेरिकी शाहबलूत
In German
Blackwort
Amerikanische Kastanie
In French
Blackwort
Châtaignier d'Amérique
In Spanish
Blackwort
Castanea dentata
In Greek
Blackwort
american καστανιάς
In Portuguese
Blackwort
castanea americana
In Polish
Blackwort
Kasztan amerykański
In Latin
Blackwort
English castaneis
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Family
Boraginaceae
Fagaceae
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Subfamily
Boraginoideae
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Season and Care of Comfrey and American Chestnut
Season and care of Comfrey and American Chestnut is important to know. While considering everything about Comfrey and American Chestnut Care, growing season is an essential factor. Comfrey season is Spring, Summer, Fall and Winter and American Chestnut season is Spring, Summer, Fall and Winter. The type of soil for Comfrey is Loam, Sand and for American Chestnut is Clay, Loam while the PH of soil for Comfrey is Acidic, Neutral and for American Chestnut is Acidic, Neutral.
Comfrey and American Chestnut Physical Information
Comfrey and American Chestnut physical information is very important for comparison. Comfrey height is 20.00 cm and width 90.00 cm whereas American Chestnut height is 1,830.00 cm and width 2,130.00 cm. The color specification of Comfrey and American Chestnut are as follows:
Comfrey flower color: White and Light Pink
Comfrey leaf color: Red, Green and Copper
American Chestnut flower color: Gold, Light Green, Light Yellow and White
- American Chestnut leaf color: Green
Care of Comfrey and American Chestnut
Care of Comfrey and American Chestnut include pruning, fertilizers, watering etc. Comfrey pruning is done Cut or pinch the stems and Remove dead leaves and American Chestnut pruning is done Cut back all stems to the same height, Pinch or prune as they grow to promote branching and bushiness, Remove damaged leaves, Remove dead branches and Remove dead leaves. In summer Comfrey needs Lots of watering and in winter, it needs Average Water. Whereas, in summer American Chestnut needs Lots of watering and in winter, it needs Average Water.