Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Tree
Origin
Europe, Russia
Caribbean, Central America, South America
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Alaskan blueberry, Lowbush blueberry, New Jersey blueberry
Number of Varieties
220
0
40000
👆🏻
Habitat
Cold Regions, stream banks
Dappled Shade, Sunny Edge, Woodland Garden Canopy
USDA Hardiness Zone
6-1110-15
0
99
👆🏻
AHS Heat Zone
-
12-9
Sunset Zone
21,22
A1, A2, A3, H1, H2, 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
Habit
Upright/Erect
Oval or Rounded
Plant Size
Minimum Height
20.00 cm243.84 cm
0
3900
👆🏻
Minimum Width
90.00 cm60.96 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Light Pink
White
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Orange Red
Dark Blue, Black
Leaf Color in Spring
Red, Green, Copper
Green
Leaf Color in Summer
Green, Blue Green
Green, Dark Green
Leaf Color in Fall
Green, Blue Green
Dark Green
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
Dark Green
Shape
Leaf Shape
Oval
Pinnate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Growth Rate
Medium
Medium
Type of Soil
Loam, Sand
Loam
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring, Early Summer, Summer
Late Spring, Early Summer, Summer, Late Summer, Early Fall
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
-
Where to Plant?
Container, Ground
Ground
How to Plant?
Root Division, Transplanting
Seedlings, Stem Cutting
Plant Maintenance
Low
Medium
Watering Plants
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Average Water Needs
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
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
Prune in early spring, Remove branches, Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts, Remove deadheads
Fertilizers
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
All-Purpose Liquid Fertilizer, Ammonia sulphate, In Late summer, Nitrogen, Phosphorous, Potassium, Potassium sulphate
Pests and Diseases
Aphids, Stem spot
Red blotch
Plant Tolerance
Shallow soil, Sun
-
Flowers
Showy
Insignificant
Flower Petal Number
Single
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
Allergy
Antibacterial, Peripheral Edema
Pollen
Uses
Aesthetic Uses
Cottage Garden, Showy Purposes
Showy Purposes
Beauty Benefits
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
Good for skin and hair, Speed hair growth, Weightloss
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Fixes Nitrogen
Air purification
Plant Benefits
Medicinal Uses
Asthma, Diarrhea, Obesity, Osteoarthritis
Astringent, Pectoral
Part of Plant Used
Leaves, Twigs
Fruits
Other Uses
Used for its medicinal properties
Used in making tea
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Shade Trees, Tropical
Botanical Name
Symphytum asperum
SYMPLOCOS martinicensis
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
Blue Berry, Horse Sugar, Martinique Sweetleaf, Whitewood
In Hindi
Blackwort
Blue Berry Tree
In German
Blackwort
Blue Berry Baum
In French
Blackwort
Bleu Berry Tree
In Spanish
Blackwort
Árbol de la baya azul
In Greek
Blackwort
Μπλε δέντρο μούρων
In Portuguese
Blackwort
Árvore Berry Azul
In Polish
Blackwort
Niebieski Berry Drzewo
In Latin
Blackwort
Berry lignum blue
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Lamiales
Ebenales
Family
Boraginaceae
Symplocaceae
Genus
Symphytum
Symplocos
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Tribe
-
-
Subfamily
Boraginoideae
-
Number of Species
35300
1
27800
👆🏻