Life Span
Perennial
Annual
Type
Broadleaf Evergreen
Vegetable
Origin
Europe, Russia
North America, Central America, South America
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
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Habitat
Cold Regions, stream banks
Clay soil areas, Loamy soils, Sandy areas
USDA Hardiness Zone
6-11
-9999
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
Upright/Erect
Flower Color
White, Light Pink
-
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Orange Red
White, Yellow, Light Yellow, Peach
Leaf Color in Spring
Red, Green, Copper
Green, Dark Green
Leaf Color in Summer
Green, Blue Green
Green, Dark Green
Leaf Color in Fall
Green, Blue Green
Green, Dark Green
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
Green, Dark Green
Leaf Shape
Oval
Long Linear
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun
Growth Rate
Medium
Very Fast
Type of Soil
Loam, Sand
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral
Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring, Early Summer, Summer
Indeterminate
Where to Plant?
Container, Ground
Ground, Pot
How to Plant?
Root Division, Transplanting
Seedlings, Transplanting
Plant Maintenance
Low
Medium
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Average Water Needs, Do Not over Water, Needs watering once a week, Never Over-water, Over-head watering
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil pH
Acidic, Neutral
Neutral
Soil Type
Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full 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
Nitrogen, Phosphorous, Potassium, Well-rotted manure
Pests and Diseases
Aphids, Stem spot
Aphids, Armyworm, Beetles, Flea Beetles, Leaf spot, Red blotch, Seedcorn maggot, Worms
Plant Tolerance
Shallow soil, Sun
Drought
Flowers
Showy
Insignificant
Flower Petal Number
Single
-
Foliage Texture
Medium
Coarse
Foliage Sheen
Glossy
Glossy
Attracts
Ants, Butterflies, pollinators
Aphids, Beetles
Allergy
Antibacterial, Peripheral Edema
Asthma, Diarrhea, Headache, Nausea, Runny nose, Skin rash, sneezing, Vomiting
Aesthetic Uses
Cottage Garden, Showy Purposes
-
Beauty Benefits
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
-
Environmental Uses
Air purification, Fixes Nitrogen
Food for animals, Food for birds, Food for insects
Medicinal Uses
Asthma, Diarrhea, Obesity, Osteoarthritis
Iron, Potassium, Vitamin C
Part of Plant Used
Leaves, Twigs
Kernel
Other Uses
Used for its medicinal properties
Used as a nutritious food item, Used for its medicinal properties
Used As Indoor Plant
No
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Edible, Herb, Vegetable
Botanical Name
Symphytum asperum
ZEA mays var rugosa
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
Sweet Corn
In Hindi
Blackwort
स्वीट कॉर्न
In French
Blackwort
Le maïs sucré
In Spanish
Blackwort
Maíz dulce
In Greek
Blackwort
γλυκό καλαμπόκι
In Portuguese
Blackwort
milho doce
In Polish
Blackwort
Kukurydza
In Latin
Blackwort
Dulcis frumentum
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Liliopsida
Family
Boraginaceae
Poaceae
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Commelinids, Monocots
Subfamily
Boraginoideae
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Season and Care of Comfrey and Sweet Corn
Season and care of Comfrey and Sweet Corn is important to know. While considering everything about Comfrey and Sweet Corn Care, growing season is an essential factor. Comfrey season is Spring, Summer, Fall and Winter and Sweet Corn season is Spring, Summer, Fall and Winter. The type of soil for Comfrey is Loam, Sand and for Sweet Corn is Clay, Loam, Sand while the PH of soil for Comfrey is Acidic, Neutral and for Sweet Corn is Neutral.
Comfrey and Sweet Corn Physical Information
Comfrey and Sweet Corn physical information is very important for comparison. Comfrey height is 20.00 cm and width 90.00 cm whereas Sweet Corn height is 180.00 cm and width 60.00 cm. The color specification of Comfrey and Sweet Corn are as follows:
Care of Comfrey and Sweet Corn
Care of Comfrey and Sweet Corn include pruning, fertilizers, watering etc. Comfrey pruning is done Cut or pinch the stems and Remove dead leaves and Sweet Corn pruning is done Remove damaged leaves, Remove dead branches and Remove dead leaves. In summer Comfrey needs Lots of watering and in winter, it needs Average Water. Whereas, in summer Sweet Corn needs Lots of watering and in winter, it needs Average Water.