Life Span
Perennial
Biennial
Type
Broadleaf Evergreen
Tree
Origin
Europe, Russia
United States, North-Central United States, Canada
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
The White Oaks, Chestnut Oak, Bur Oak
Habitat
Cold Regions, stream banks
Humid climates
USDA Hardiness Zone
6-11
4-7
Sunset Zone
21,22
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
Spreading
Flower Color
White, Light Pink
Red, Light Green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Orange Red
Chocolate
Leaf Color in Spring
Red, Green, Copper
Pink, Sienna
Leaf Color in Summer
Green, Blue Green
Dark Green
Leaf Color in Fall
Green, Blue Green
Red, Purple, Burgundy, Dark Red
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
Type of Soil
Loam, Sand
Clay, Loamy, Moist, Sandy, Well drained
The pH of Soil
Acidic, Neutral
Acidic
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring, Early Summer, Summer
Spring, Late Spring
Where to Plant?
Container, Ground
Ground
How to Plant?
Root Division, Transplanting
Seedlings
Plant Maintenance
Low
Medium
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Average Water Needs, Needs watering once a week, occasional watering once established, Requires watering in the growing season, Water daily during growing season, Water more in summer
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, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun
Pruning
Cut or pinch the stems, Remove dead leaves
Prune for shortening long shoots, Prune if you want to improve plant shape, Prune when plant is dormant, Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove short branches
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
Flower Petal Number
Single
-
Foliage Texture
Medium
Medium
Foliage Sheen
Glossy
Glossy
Attracts
Ants, Butterflies, pollinators
Birds, Hummingbirds, Squirrels, Woodpeckers
Allergy
Antibacterial, Peripheral Edema
-
Aesthetic Uses
Cottage Garden, Showy Purposes
Showy Purposes
Beauty Benefits
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
-
Environmental Uses
Air purification, Fixes Nitrogen
Air purification, Shadow Tree, Shelter for wildlife
Medicinal Uses
Asthma, Diarrhea, Obesity, Osteoarthritis
-
Part of Plant Used
Leaves, Twigs
Tree trunks
Other Uses
Used for its medicinal properties
Air freshner, Grown for shade, Used as firewood, Used in Furniture, Used in paper industry, Wood is used for making furniture, Wood is used fore making tools, Wood log is used in making fences
Used As Indoor Plant
No
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Shade Trees
Botanical Name
Symphytum asperum
QUERCUS ellipsoidalis
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
Northern Pin Oak
In Hindi
Blackwort
Pin Oak
In German
Blackwort
Pin-Eichen
In French
Blackwort
Pin Oak
In Spanish
Blackwort
pin Oak
In Greek
Blackwort
pin Oak
In Portuguese
Blackwort
Pin Oak
In Polish
Blackwort
pin Oak
In Latin
Blackwort
Quercus
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 Pin Oak
Season and care of Comfrey and Pin Oak is important to know. While considering everything about Comfrey and Pin Oak Care, growing season is an essential factor. Comfrey season is Spring, Summer, Fall and Winter and Pin Oak season is Spring, Summer, Fall and Winter. The type of soil for Comfrey is Loam, Sand and for Pin Oak is Clay, Loamy, Moist, Sandy, Well drained while the PH of soil for Comfrey is Acidic, Neutral and for Pin Oak is Acidic.
Comfrey and Pin Oak Physical Information
Comfrey and Pin Oak physical information is very important for comparison. Comfrey height is 20.00 cm and width 90.00 cm whereas Pin Oak height is 2,499.36 cm and width 792.48 cm. The color specification of Comfrey and Pin Oak are as follows:
Comfrey flower color: White and Light Pink
Comfrey leaf color: Red, Green and Copper
Pin Oak flower color: Red and Light Green
- Pin Oak leaf color: Pink and Sienna
Care of Comfrey and Pin Oak
Care of Comfrey and Pin Oak include pruning, fertilizers, watering etc. Comfrey pruning is done Cut or pinch the stems and Remove dead leaves and Pin Oak pruning is done Prune for shortening long shoots, Prune if you want to improve plant shape, Prune when plant is dormant, Remove damaged leaves, Remove dead branches, Remove dead leaves and Remove short branches. In summer Comfrey needs Lots of watering and in winter, it needs Average Water. Whereas, in summer Pin Oak needs Lots of watering and in winter, it needs Average Water.