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
Number of Varieties
212
0
40000
👆🏻
Habitat
Cold Regions, stream banks
Humid climates
USDA Hardiness Zone
6-114-7
0
99
👆🏻
AHS Heat Zone
-
7-1
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
Plant Size
Minimum Height
20.00 cm2,499.36 cm
0
3900
👆🏻
Minimum Width
90.00 cm792.48 cm
0
6350
👆🏻
Plant Color
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
-
Shape
Leaf Shape
Oval
Y-shaped
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun
Growth Rate
Medium
Slow
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
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Drought
Where to Plant?
Container, Ground
Ground
How to Plant?
Root Division, Transplanting
Seedlings
Plant Maintenance
Low
Medium
Watering Plants
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
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
Flowers
✔
✘
✔
✘
Flower Petal Number
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
Birds, Hummingbirds, Squirrels, Woodpeckers
Allergy
Antibacterial, Peripheral Edema
-
Uses
Aesthetic Uses
Cottage Garden, Showy Purposes
Showy Purposes
Beauty Benefits
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Fixes Nitrogen
Air purification, Shadow Tree, Shelter for wildlife
Plant Benefits
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
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
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
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
-
Class
Magnoliopsida
Magnoliopsida
Order
Lamiales
Fagales
Family
Boraginaceae
Fagaceae
Genus
Symphytum
Quercus
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
Boraginoideae
-
Number of Species
35207
1
27800
👆🏻