Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Grass
Origin
Europe, Russia
Europe, Asia
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Blue Oat grass
Number of Varieties
Not Available
Habitat
Cold Regions, stream banks
Cropland, gardens, Grassland, Roadsides
USDA Hardiness Zone
6-11
4-9
AHS Heat Zone
Not Available
Not Available
Sunset Zone
21,22
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 15, 16, 17, 23, 24
Habit
Upright/Erect
Clump-Forming
Flower Color
White, Light Pink
Brown
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Not Available, Orange Red
Brown
Leaf Color in Spring
Red, Green, Copper
Gray Green
Leaf Color in Summer
Green, Blue Green
Light Green
Leaf Color in Fall
Green, Blue Green
Dark Green
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
Tan, Brown
Leaf Shape
Oval
Grass like
Plant Season
Spring, Summer, Fall, Winter
Not Available
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
Average
Bloom Time
Late Spring, Early Summer, Summer
Early Summer
Tolerances
Not Available
Drought
Where to Plant?
Container, Ground
Ground
How to Plant?
Root Division, Transplanting
Seedlings
Plant Maintenance
Low
Medium
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Does not require lot of watering, Water occasionally
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil pH
Acidic, Neutral
Acidic, Neutral
Soil Type
Loam, Sand
Loam
Soil Drainage Capacity
Well drained
Average
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Pruning
Cut or pinch the stems, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves
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
Showy
Not Available
Flower Petal Number
Single
Single
Foliage Texture
Medium
Not Available
Foliage Sheen
Glossy
Matte
Attracts
Ants, Butterflies, pollinators
Not Available
Allergy
Antibacterial, Peripheral Edema
Asthma, Itchy eyes
Aesthetic Uses
Cottage Garden, Showy Purposes
Not Used For Aesthetic Purpose
Beauty Benefits
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
Not Available
Environmental Uses
Air purification, Fixes Nitrogen
Air purification
Medicinal Uses
Asthma, Diarrhea, Obesity, Osteoarthritis
Arthritis, Headache, Stomach pain
Part of Plant Used
Leaves, Twigs
Whole plant
Other Uses
Used for its medicinal properties
Used as a nutritious food item
Used As Indoor Plant
No
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Bedding Plant, Feature Plant, Groundcover
Botanical Name
Symphytum asperum
ARRHENATHERUM
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
Oatgrass
In Hindi
Blackwort
जई घास
In German
Blackwort
Ährengras
In French
Blackwort
Folle avoine
In Spanish
Blackwort
oat Grass
In Greek
Blackwort
βρώμη Grass
In Portuguese
Blackwort
aveia-
In Polish
Blackwort
Owies trawa
In Latin
Blackwort
oat Grass
Phylum
Magnoliophyta
Not Available
Class
Magnoliopsida
Liliopsida
Family
Boraginaceae
Poaceae
Genus
Symphytum
Danthonia
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Commelinids, Monocots
Tribe
Not Available
Aveneae
Subfamily
Boraginoideae
Danthonioideae
Number of Species
Not Available
Not Available
Importance of Comfrey and Oatgrass
Want to have the most appropriate plant for your garden? You might want to know the importance of Comfrey and Oatgrass. Basically, these two plants vary in many aspects. Compare Comfrey and Oatgrass as they differ in many characteristics such as their life, care, benefits, facts, etc. Every gardener must at least have the slightest clue about the plants he wants to plant in his garden. Compare their benefits, which differ in many ways like facts and uses. The medicinal use of Comfrey is Asthma, Diarrhea, Obesity and Osteoarthritis whereas of Oatgrass is Arthritis, Headache and Stomach pain. Comfrey has beauty benefits as follows: Acne, Beautiful Skin, Reduce Bruises and Remove blemishes while Oatgrass has beauty benefits as follows: Acne, Beautiful Skin, Reduce Bruises and Remove blemishes.
Compare Facts of Comfrey vs Oatgrass
How to choose the best garden plant for your garden depending upon its facts? Here garden plant comparison will help you to solve this query. Compare the facts of Comfrey vs Oatgrass and know which one to choose. As garden plants have benefits and other uses, allergy is also a major drawback of plants for some people. Allergic reactions of Comfrey are Antibacterial and Peripheral Edema whereas of Oatgrass have Asthma and Itchy eyes respectively. Having a fruit bearing plant in your garden can be a plus point of your garden. Comfrey has showy fruits and Oatgrass has showy fruits. Also Comfrey is not flowering and Oatgrass is not flowering . You can compare Comfrey and Oatgrass facts and facts of other plants too.