Type
Tree
Broadleaf Evergreen
Origin
China, Japan
Europe, Russia
Types
Cryptomeria japonica 'Cristata'
Cryptomeria japonica 'Dacrydioides'
Cryptomeria japonica 'Spiralis'
Cryptomeria japonica 'Bandai Sugi'
Cryptomeria japonica 'Black Dragon'
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Habitat
Hills, low mountains, Mountain Slopes, Mountain tops, Mountains
Cold Regions, stream banks
USDA Hardiness Zone
5-9
6-11
Sunset Zone
4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
21,22
Habit
Pyramidal
Upright/Erect
Flower Color
-
White, Light Pink
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Brown
Orange Red
Leaf Color in Spring
Green, Blue Green
Red, Green, Copper
Leaf Color in Summer
Green, Blue Green
Green, Blue Green
Leaf Color in Fall
Green
Green, Blue Green
Leaf Color in Winter
Green, Purple, Brown, Bronze
Red, Dark Green, Burgundy, Bronze
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun, Partial shade
Growth Rate
Medium
Medium
Type of Soil
Clay, Loam
Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
-
Late Spring, Early Summer, Summer
Where to Plant?
Ground
Container, Ground
How to Plant?
Budding, Seedlings
Root Division, Transplanting
Plant Maintenance
Medium
Low
Watering Requirements
Average Water Needs, Do Not over Water, Do not water frequently
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 pH
Acidic, Neutral
Acidic, Neutral
Soil Type
Clay, Loam
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, Apply N-P-K
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
Pests and Diseases
Leaf spot, Mites, Red blotch
Aphids, Stem spot
Plant Tolerance
Drought
Shallow soil, Sun
Flower Petal Number
-
Single
Fragrant Bark/Stem
Yes
No
Foliage Texture
Fine
Medium
Attracts
-
Ants, Butterflies, pollinators
Allergy
Hay fever
Antibacterial, Peripheral Edema
Aesthetic Uses
-
Cottage Garden, Showy Purposes
Beauty Benefits
-
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
Environmental Uses
Air purification
Air purification, Fixes Nitrogen
Medicinal Uses
-
Asthma, Diarrhea, Obesity, Osteoarthritis
Part of Plant Used
Wood
Leaves, Twigs
Other Uses
-
Used for its medicinal properties
Used As Indoor Plant
No
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Feature Plant, Foundation, Screening / Wind Break, Shade Trees, Topiary / Bonsai / Espalier
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Botanical Name
CRYPTOMERIA japonica
Symphytum asperum
Common Name
Japanese Cedar, Japanese Cryptomeria
Comfrey,Black Root, Blackwort, Bruisewort
In Hindi
Japanese Cedar
Blackwort
In German
der japanischen Zeder
Blackwort
In French
Cedar japonais
Blackwort
In Spanish
cedro japonés
Blackwort
In Greek
Ιαπωνικά Cedar
Blackwort
In Portuguese
Cedar japonês
Blackwort
In Polish
japoński cedr
Blackwort
In Latin
Italica Cedar
Blackwort
Phylum
Tracheophyta
Magnoliophyta
Class
Pinopsida
Magnoliopsida
Family
Cupressaceae
Boraginaceae
Genus
Cyptomeria
Symphytum
Clade
-
Angiosperms, Eudicots, Rosids
Subfamily
-
Boraginoideae
Season and Care of Japanese Cedar and Comfrey
Season and care of Japanese Cedar and Comfrey is important to know. While considering everything about Japanese Cedar and Comfrey Care, growing season is an essential factor. Japanese Cedar season is Spring, Summer, Fall and Winter and Comfrey season is Spring, Summer, Fall and Winter. The type of soil for Japanese Cedar is Clay, Loam and for Comfrey is Loam, Sand while the PH of soil for Japanese Cedar is Acidic, Neutral and for Comfrey is Acidic, Neutral.
Japanese Cedar and Comfrey Physical Information
Japanese Cedar and Comfrey physical information is very important for comparison. Japanese Cedar height is 1,830.00 cm and width 610.00 cm whereas Comfrey height is 20.00 cm and width 90.00 cm. The color specification of Japanese Cedar and Comfrey are as follows:
Japanese Cedar flower color:
Japanese Cedar leaf color: Green and Blue Green
Comfrey flower color: White and Light Pink
- Comfrey leaf color: Red, Green and Copper
Care of Japanese Cedar and Comfrey
Care of Japanese Cedar and Comfrey include pruning, fertilizers, watering etc. Japanese Cedar pruning is done Remove damaged leaves, Remove dead branches and Remove dead leaves and Comfrey pruning is done Cut or pinch the stems and Remove dead leaves. In summer Japanese Cedar needs Lots of watering and in winter, it needs Average Water. Whereas, in summer Comfrey needs Lots of watering and in winter, it needs Average Water.