Life Span
Biennial
Perennial
Type
Vegetable
Broadleaf Evergreen
Origin
Europe, Asia
Europe, Russia
Types
Brassica oleifer, Brassica napus
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Number of Varieties
132
0
40000
👆🏻
Habitat
Humid climates, Subtropical climates
Cold Regions, stream banks
USDA Hardiness Zone
4-86-11
0
99
👆🏻
AHS Heat Zone
9-3
-
Sunset Zone
A1, A2, A3, H1, 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
Upright/Erect
Upright/Erect
Plant Size
Minimum Height
30.50 cm20.00 cm
0
3900
👆🏻
Minimum Width
25.40 cm90.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow
White, Light Pink
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Brown, Black
Orange Red
Leaf Color in Spring
Blue Green
Red, Green, Copper
Leaf Color in Summer
Green, Light Green, Gray Green
Green, Blue Green
Leaf Color in Fall
-
Green, Blue Green
Leaf Color in Winter
Green, Light Green, Gray Green
Red, Dark Green, Burgundy, Bronze
Shape
Leaf Shape
Oval Cordate
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
Very Fast
Medium
Type of Soil
Clay, Loam, Sand
Loam, Sand
The pH of Soil
Neutral
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring, Early Summer, Late Winter
Late Spring, Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
-
Where to Plant?
Container, Ground
Container, Ground
How to Plant?
Seedlings, Stem Cutting
Root Division, Transplanting
Plant Maintenance
Medium
Low
Watering Plants
Watering Requirements
Keep the Soil well drained, Needs watering once a week
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
Neutral
Acidic, Neutral
Soil Type
Clay, Loam, Sand
Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Pruning
Prune back the growing tips, Remove all suckers
Cut or pinch the stems, Remove dead leaves
Fertilizers
15-15-15 amounts, All-Purpose Liquid Fertilizer, Less fertilizing
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
Pests and Diseases
Aphids, Downy mildew, pink rot, Rust
Aphids, Stem spot
Plant Tolerance
Drought
Shallow soil, Sun
Flowers
Showy
Showy
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
Matte
Glossy
Evergreen
✔
✘
✔
✘
Invasive
Sometimes
Sometimes
Self-Sowing
✔
✘
✔
✘
Attracts
Aphids, Beetles, Bugs
Ants, Butterflies, pollinators
Allergy
Diarrhea, Nausea, Oral Allergy, sneezing, wheezing
Antibacterial, Peripheral Edema
Uses
Aesthetic Uses
Beautification, Showy Purposes
Cottage Garden, Showy Purposes
Beauty Benefits
Blackheads, Blood purifying, Perfumes
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
Edible Uses
✔
✘
✔
✘
Environmental Uses
Food for birds, No fertilizer, pesticides, or herbicides needed, Shadow Tree
Air purification, Fixes Nitrogen
Plant Benefits
Medicinal Uses
Cholesterol Free, Curing mumps and measles, Digestion problems, Diuretic, Palpitation, Piles
Asthma, Diarrhea, Obesity, Osteoarthritis
Part of Plant Used
Leaves, Stem
Leaves, Twigs
Other Uses
Making Sweet Scented Oil, Oil is used for aromatherapy, Oil is used in perfume, soaps, creams, etc.
Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Edible, Herb / Vegetable
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Botanical Name
BRASSICA rapa ssp. nipposinica
Symphytum asperum
Common Name
Kabuna, Mizuna, Spinach Mustard, Tendergreen
Comfrey,Black Root, Blackwort, Bruisewort
In Hindi
Mizuna
Blackwort
In German
Mizuna
Blackwort
In French
Mizuna
Blackwort
In Spanish
Mizuna
Blackwort
In Greek
Mizuna
Blackwort
In Portuguese
Mizuna
Blackwort
In Polish
Mizuna
Blackwort
In Latin
Mizuna
Blackwort
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Capparales
Lamiales
Family
Brassicaceae
Boraginaceae
Genus
Brassica
Symphytum
Clade
Angiosperms, Monocots
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
-
Boraginoideae
Number of Species
335
1
27800
👆🏻