Life Span
Biennial
Perennial
Type
Tree
Broadleaf Evergreen
Origin
Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States
Europe, Russia
Types
Yellow Birch, Paper Birch, River Birch
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Number of Varieties
402
0
40000
👆🏻
Habitat
Hills, Moist Soils
Cold Regions, stream banks
USDA Hardiness Zone
4-96-11
0
99
👆🏻
AHS Heat Zone
9-1
-
Sunset Zone
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
21,22
Habit
Oval or Rounded
Upright/Erect
Plant Size
Minimum Height
2,133.60 cm20.00 cm
0
3900
👆🏻
Minimum Width
762.00 cm90.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow, Brown
White, Light Pink
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Black
Orange Red
Leaf Color in Spring
Green, Light Green
Red, Green, Copper
Leaf Color in Summer
Green, Light Green
Green, Blue Green
Leaf Color in Fall
Yellow, Light Yellow, Tan
Green, Blue Green
Leaf Color in Winter
-
Red, Dark Green, Burgundy, Bronze
Shape
Leaf Shape
Pinnate
Oval
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Fast
Medium
Type of Soil
Clay, Loam
Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Average
Well drained
Bloom Time
Spring
Late Spring, Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Wet Site, Pollution, Soil Compaction
-
Where to Plant?
Ground
Container, Ground
How to Plant?
Seedlings
Root Division, Transplanting
Plant Maintenance
Medium
Low
Watering Plants
Watering Requirements
Requires watering in the growing season, Water daily during growing season, Water Deeply, Water more frequently during periods of extreme drought
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
Soil pH
Acidic, Neutral
Acidic, Neutral
Soil Type
Clay, Loam
Loam, Sand
Soil Drainage Capacity
Average
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Pruning
Remove branches, Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts, Remove hanging branches
Cut or pinch the stems, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer, fertilize twice a year, Nitrogen
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
Pests and Diseases
Red blotch
Aphids, Stem spot
Plant Tolerance
Pollution, Soil Compaction, Wet Site
Shallow soil, Sun
Flowers
Showy
Showy
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
Matte
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Ants, Aphids, Birds
Ants, Butterflies, pollinators
Allergy
-
Antibacterial, Peripheral Edema
Uses
Aesthetic Uses
-
Cottage Garden, Showy Purposes
Beauty Benefits
Good for skin
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Nesting sites for birds, Shadow Tree, Shelter for wildlife, Wildlife
Air purification, Fixes Nitrogen
Plant Benefits
Medicinal Uses
Antibacterial, anti-inflammatory, Arthritis, Boils, bowel syndrome, Combats Stress, Diarrhea, Dysentry, Heart problems, Kidney Stones, Osteoarthritis, Skin Disorders, Urinary tract problems
Asthma, Diarrhea, Obesity, Osteoarthritis
Part of Plant Used
Bark, Leaves, Sap
Leaves, Twigs
Other Uses
Medicinal oil, Used as essential oil
Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Botanical Name
BETULA nigra 'Studetec'
Symphytum asperum
Common Name
Black Birch, River Birch, Tecumseh Compact River Birch
Comfrey,Black Root, Blackwort, Bruisewort
In Hindi
काले बर्च वृक्ष
Blackwort
In German
Schwarze Birke
Blackwort
In French
Noir Bouleau
Blackwort
In Spanish
Negro del árbol de abedul
Blackwort
In Greek
Μαύρο Birch Tree
Blackwort
In Portuguese
Bétula Preto
Blackwort
In Polish
Czarny Brzoza
Blackwort
In Latin
Niger Caerulus
Blackwort
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Lamiales
Family
Betulaceae
Boraginaceae
Genus
Betula
Symphytum
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
-
Boraginoideae
Number of Species
4035
1
27800
👆🏻