Life Span
Perennial
Annual
Type
Broadleaf Evergreen
Flowering Plants
Origin
Europe, Russia
America, Europe
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Clump verbena, Moss verbena, Annual Verbena, Brazilian verbena, Sandpaper Verbana
Number of Varieties
250
0
40000
👆🏻
Habitat
Cold Regions, stream banks
Forest edges, Hillside, Woods
USDA Hardiness Zone
6-113-9
0
99
👆🏻
AHS Heat Zone
-
-
Sunset Zone
21,22
8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
-
Plant Size
Minimum Height
20.00 cm6.56 cm
0
3900
👆🏻
Minimum Width
90.00 cm10.50 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Light Pink
Blue, Dark Purple, Light Purple, Red, White
Flower Color Modifier
Bicolor
-
Fruit Color
Orange Red
-
Leaf Color in Spring
Red, Green, Copper
Dark Green
Leaf Color in Summer
Green, Blue Green
Dark Green, Green
Leaf Color in Fall
Green, Blue Green
Dark Green, Green
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
-
Shape
Leaf Shape
Oval
Oblovate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Early Spring, Late Autumn
Growing Conditions
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial shade
Growth Rate
Medium
Fast
Type of Soil
Loam, Sand
Well drained
The pH of Soil
Acidic, Neutral
Neutral, Slightly Acidic
Soil Drainage
Well drained
Average
Bloom Time
Late Spring, Early Summer, Summer
Early Fall, Early Summer, Fall, Late Spring, Late Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
-
Where to Plant?
Container, Ground
Container, Ground
How to Plant?
Root Division, Transplanting
Seedlings, Stem Planting
Plant Maintenance
Low
Medium
Watering Plants
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Do not water frequently, Medium, Never Over-water, Requires regular watering, Requires watering in the 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
Neutral, Slightly Acidic
Soil Type
Loam, Sand
Well drained
Soil Drainage Capacity
Well drained
Average
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun, Partial shade
Pruning
Cut or pinch the stems, Remove dead leaves
Prune for shortening long shoots, Prune if you want to improve plant shape, Prune lower leaves, Prune regularly, Prune to control growth
Fertilizers
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
All-Purpose Liquid Fertilizer
Pests and Diseases
Aphids, Stem spot
-
Plant Tolerance
Shallow soil, Sun
Drought
Flowers
✔
✘
✔
✘
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
-
Foliage Sheen
Glossy
-
Evergreen
✔
✘
✔
✘
Invasive
Sometimes
-
Self-Sowing
✔
✘
✔
✘
Attracts
Ants, Butterflies, pollinators
Butterflies
Allergy
Antibacterial, Peripheral Edema
Arthritis, Asthma, Chest Pain, Itchiness, Whooping Cough
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
Plant Benefits
Medicinal Uses
Asthma, Diarrhea, Obesity, Osteoarthritis
Arthritis, Gallbladder Diseases, Itching, Jaundice, Joint pain, Kidney problems, Liver problems, Metabolic disorders, Sore throat, Upset stomach, Urinary tract problems
Part of Plant Used
Leaves, Twigs
Flowers, Root
Other Uses
Used for its medicinal properties
Air freshner, Can be made into a herbal tea, Cosmetics, Decoration Purposes, Economic Purpose, Employed in herbal medicine, Oil is used for aromatherapy, Oil is used in perfume, soaps, creams, etc., Showy Purposes, Used As Food, Used as Ornamental plant, Used for flavoring in Liquors, dairy products, gelatins,puddings, meats, candies, etc., Used for fragrance
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Bedding Plant, Bonsai, Container, Edible, Herb
Botanical Name
Symphytum asperum
Purpletop Vervain
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
Verbena
In Hindi
Blackwort
verbena
In German
Blackwort
Eisenkraut
In French
Blackwort
verveine
In Spanish
Blackwort
Verbena
In Greek
Blackwort
λουίζα
In Portuguese
Blackwort
verbena
In Polish
Blackwort
werbena
In Latin
Blackwort
Grindelia
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Lamiales
Lamiales
Family
Boraginaceae
Verbenaceae
Genus
Symphytum
Verbena
Clade
Angiosperms, Eudicots, Rosids
-
Tribe
-
-
Subfamily
Boraginoideae
-
Number of Species
35250
1
27800
👆🏻